{
  "title": "Missing Numbers (1-100) - Grade 1",
  "total_questions": 100,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "What number is missing? 5, 6, _, 8, 9 🐶",
      "options": {"A": "10", "B": "5", "C": "7", "D": "4"},
      "correct_answer": "C"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Find the missing number: 12, 13, _, 15, 16 🍎",
      "options": {"A": "18", "B": "14", "C": "11", "D": "17"},
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "What's missing? 20, 21, 22, _, 24 🌟",
      "options": {"A": "25", "B": "19", "C": "26", "D": "23"},
      "correct_answer": "D"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Complete: 35, 36, _, 38, 39 🚗",
      "options": {"A": "34", "B": "40", "C": "37", "D": "41"},
      "correct_answer": "C"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Find the missing: 48, _, 50, 51, 52 🍭",
      "options": {"A": "53", "B": "47", "C": "49", "D": "54"},
      "correct_answer": "C"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "What number is missing? 63, 64, 65, _, 67 🦋",
      "options": {"A": "66", "B": "68", "C": "69", "D": "62"},
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Complete: 77, 78, 79, _, 81 🍦",
      "options": {"A": "76", "B": "82", "C": "83", "D": "80"},
      "correct_answer": "D"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Find the missing: 89, 90, _, 92, 93 🎈",
      "options": {"A": "94", "B": "91", "C": "95", "D": "88"},
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "What's missing? 3, 4, 5, _, 7 🐸",
      "options": {"A": "8", "B": "6", "C": "2", "D": "9"},
      "correct_answer": "B"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Complete: 14, 15, 16, _, 18 🐢",
      "options": {"A": "20", "B": "13", "C": "17", "D": "19"},
      "correct_answer": "C"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Find the missing: 27, 28, _, 30, 31 🎨",
      "options": {"A": "29", "B": "33", "C": "26", "D": "32"},
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "What number is missing? 42, 43, _, 45, 46 🏀",
      "options": {"A": "47", "B": "48", "C": "44", "D": "41"},
      "correct_answer": "C"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Complete: 56, 57, 58, _, 60 🚀",
      "options": {"A": "62", "B": "55", "C": "59", "D": "61"},
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Find the missing: 68, 69, _, 71, 72 🍪",
      "options": {"A": "73", "B": "70", "C": "74", "D": "67"},
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "What's missing? 84, 85, 86, _, 88 🚲",
      "options": {"A": "87", "B": "90", "C": "83", "D": "89"},
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Complete: 91, 92, 93, _, 95 🦁",
      "options": {"A": "90", "B": "94", "C": "96", "D": "97"},
      "correct_answer": "B"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Find the missing: 7, 8, 9, _, 11 🐛",
      "options": {"A": "6", "B": "12", "C": "10", "D": "13"},
      "correct_answer": "C"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "What number is missing? 25, 26, 27, _, 29 📚",
      "options": {"A": "24", "B": "30", "C": "28", "D": "31"},
      "correct_answer": "C"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Complete: 40, 41, 42, _, 44 🍩",
      "options": {"A": "45", "B": "39", "C": "46", "D": "43"},
      "correct_answer": "D"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Find the missing: 55, _, 57, 58, 59 🎯",
      "options": {"A": "54", "B": "60", "C": "61", "D": "56"},
      "correct_answer": "D"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "What two numbers are missing? 18, 19, _, _, 22, 23 🏠",
      "options": {"A": "16, 17", "B": "20, 21", "C": "24, 25", "D": "17, 18"},
      "correct_answer": "B"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Find the missing number: 33, _, 35, 36, 37, 38 🎪",
      "options": {"A": "40", "B": "32", "C": "39", "D": "34"},
      "correct_answer": "D"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Complete: 47, 48, 49, _, _, 52, 53 🌈",
      "options": {"A": "45, 46", "B": "50, 51", "C": "54, 55", "D": "46, 47"},
      "correct_answer": "B"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "What's missing? 61, 62, _, 64, 65, 66 🍕",
      "options": {"A": "60", "B": "67", "C": "63", "D": "68"},
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Find two missing numbers: 70, 71, _, _, 74, 75 🚁",
      "options": {"A": "76, 77", "B": "72, 73", "C": "68, 69", "D": "69, 70"},
      "correct_answer": "B"
    },
       {
      "id": 26,
      "difficulty": "medium",
      "question": "Complete: 82, 83, 84, _, 86, 87 🎸",
      "options": {"A": "85", "B": "88", "C": "89", "D": "81"},
      "correct_answer": "A"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "What number is missing? 94, 95, 96, _, 98, 99 🎳",
      "options": {"A": "93", "B": "100", "C": "97", "D": "101"},
      "correct_answer": "C"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Find the missing: 10, 11, 12, _, 14, 15 🍎",
      "options": {"A": "13", "B": "9", "C": "16", "D": "17"},
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "What two numbers are missing? 21, 22, _, _, 25, 26 🐧",
      "options": {"A": "19, 20", "B": "27, 28", "C": "23, 24", "D": "20, 21"},
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Complete: 30, _, 32, 33, 34, 35 🚗",
      "options": {"A": "29", "B": "36", "C": "37", "D": "31"},
      "correct_answer": "D"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Find the missing number: 44, 45, _, 47, 48, 49 🎭",
      "options": {"A": "46", "B": "43", "C": "50", "D": "51"},
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "What's missing? 58, 59, 60, _, 62, 63 🍦",
      "options": {"A": "57", "B": "61", "C": "64", "D": "65"},
      "correct_answer": "B"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Find two missing numbers: 67, _, 69, 70, _, 72 🏀",
      "options": {"A": "68, 71", "B": "65, 66", "C": "73, 74", "D": "66, 67"},
      "correct_answer": "A"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Complete: 76, 77, 78, _, 80, 81 🎈",
      "options": {"A": "82", "B": "79", "C": "83", "D": "75"},
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "What number is missing? 85, 86, 87, 88, _, 90 🐶",
      "options": {"A": "91", "B": "84", "C": "89", "D": "92"},
      "correct_answer": "C"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Find the missing: 92, 93, _, 95, 96, 97 🚀",
      "options": {"A": "91", "B": "98", "C": "94", "D": "99"},
      "correct_answer": "C"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "What two numbers are missing? 4, 5, _, _, 8, 9 🎨",
      "options": {"A": "6, 7", "B": "10, 11", "C": "2, 3", "D": "3, 4"},
      "correct_answer": "A"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Complete: 13, 14, 15, _, 17, 18 🍭",
      "options": {"A": "20", "B": "12", "C": "16", "D": "19"},
      "correct_answer": "C"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Find the missing number: 26, _, 28, 29, 30, 31 🦋",
      "options": {"A": "27", "B": "32", "C": "25", "D": "33"},
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "What's missing? 39, 40, 41, 42, _, 44 🍪",
      "options": {"A": "38", "B": "43", "C": "45", "D": "46"},
      "correct_answer": "B"
    },
    {
      "id": 41,
      "difficulty": "medium",
      "question": "Find two missing numbers: 51, 52, _, _, 55, 56 🎯",
      "options": {"A": "53, 54", "B": "49, 50", "C": "57, 58", "D": "50, 51"},
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "medium",
      "question": "Complete: 64, 65, _, 67, 68, 69 📚",
      "options": {"A": "63", "B": "66", "C": "70", "D": "71"},
      "correct_answer": "B"
    },
    {
      "id": 43,
      "difficulty": "medium",
      "question": "What number is missing? 73, 74, 75, 76, _, 78 🍩",
      "options": {"A": "72", "B": "79", "C": "77", "D": "80"},
      "correct_answer": "C"
    },
    {
      "id": 44,
      "difficulty": "medium",
      "question": "Find the missing: 80, 81, _, 83, 84, 85 🏠",
      "options": {"A": "79", "B": "86", "C": "82", "D": "87"},
      "correct_answer": "C"
    },
    {
      "id": 45,
      "difficulty": "medium",
      "question": "What two numbers are missing? 88, 89, _, _, 92, 93 🎪",
      "options": {"A": "86, 87", "B": "90, 91", "C": "94, 95", "D": "87, 88"},
      "correct_answer": "B"
    },
    {
      "id": 46,
      "difficulty": "medium",
      "question": "Complete: 1, 2, 3, _, 5, 6 🌈",
      "options": {"A": "0", "B": "7", "C": "4", "D": "8"},
      "correct_answer": "C"
    },
    {
      "id": 47,
      "difficulty": "medium",
      "question": "Find the missing number: 16, 17, 18, _, 20, 21 🍕",
      "options": {"A": "19", "B": "22", "C": "15", "D": "23"},
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "medium",
      "question": "What's missing? 29, 30, 31, 32, _, 34 🚁",
      "options": {"A": "28", "B": "33", "C": "35", "D": "36"},
      "correct_answer": "B"
    },
    {
      "id": 49,
      "difficulty": "medium",
      "question": "Find two missing numbers: 37, 38, _, _, 41, 42 🎸",
      "options": {"A": "35, 36", "B": "43, 44", "C": "39, 40", "D": "36, 37"},
      "correct_answer": "C"
    },
    {
      "id": 50,
      "difficulty": "medium",
      "question": "Complete: 46, 47, _, 49, 50, 51 🎳",
      "options": {"A": "52", "B": "45", "C": "48", "D": "53"},
      "correct_answer": "C"
    },
      {
      "id": 51,
      "difficulty": "medium",
      "question": "What number is missing? 54, 55, 56, _, 58, 59 🍎",
      "options": {"A": "53", "B": "60", "C": "61", "D": "57"},
      "correct_answer": "D"
    },
    {
      "id": 52,
      "difficulty": "medium",
      "question": "Find the missing: 62, 63, 64, 65, _, 67 🐧",
      "options": {"A": "66", "B": "61", "C": "68", "D": "69"},
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "medium",
      "question": "What two numbers are missing? 68, 69, _, _, 72, 73 🚗",
      "options": {"A": "66, 67", "B": "74, 75", "C": "70, 71", "D": "67, 68"},
      "correct_answer": "C"
    },
    {
      "id": 54,
      "difficulty": "medium",
      "question": "Complete: 75, 76, _, 78, 79, 80 🎭",
      "options": {"A": "74", "B": "77", "C": "81", "D": "82"},
      "correct_answer": "B"
    },
    {
      "id": 55,
      "difficulty": "medium",
      "question": "Find the missing number: 83, 84, 85, _, 87, 88 🍦",
      "options": {"A": "82", "B": "89", "C": "90", "D": "86"},
      "correct_answer": "D"
    },
    {
      "id": 56,
      "difficulty": "medium",
      "question": "What's missing? 90, 91, 92, 93, _, 95 🏀",
      "options": {"A": "89", "B": "96", "C": "94", "D": "97"},
      "correct_answer": "C"
    },
    {
      "id": 57,
      "difficulty": "medium",
      "question": "What two numbers are missing? 8, 9, _, _, 12, 13 🎈",
      "options": {"A": "6, 7", "B": "10, 11", "C": "14, 15", "D": "7, 8"},
      "correct_answer": "B"
    },
    {
      "id": 58,
      "difficulty": "medium",
      "question": "Complete: 19, 20, 21, _, 23, 24 🐶",
      "options": {"A": "22", "B": "25", "C": "18", "D": "26"},
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "medium",
      "question": "What number is missing? 32, 33, 34, 35, _, 37 🚀",
      "options": {"A": "31", "B": "36", "C": "38", "D": "39"},
      "correct_answer": "B"
    },
    {
      "id": 60,
      "difficulty": "medium",
      "question": "Find the missing: 43, 44, _, 46, 47, 48 🎨",
      "options": {"A": "45", "B": "42", "C": "49", "D": "50"},
      "correct_answer": "A"
    },
    {
      "id": 61,
      "difficulty": "medium",
      "question": "What two numbers are missing? 49, 50, _, _, 53, 54 🍭",
      "options": {"A": "47, 48", "B": "55, 56", "C": "51, 52", "D": "48, 49"},
      "correct_answer": "C"
    },
    {
      "id": 62,
      "difficulty": "medium",
      "question": "Complete: 57, 58, 59, _, 61, 62 🦋",
      "options": {"A": "60", "B": "63", "C": "56", "D": "64"},
      "correct_answer": "A"
    },
    {
      "id": 63,
      "difficulty": "medium",
      "question": "Find the missing number: 66, 67, 68, 69, _, 71 🍪",
      "options": {"A": "65", "B": "70", "C": "72", "D": "73"},
      "correct_answer": "B"
    },
    {
      "id": 64,
      "difficulty": "medium",
      "question": "What's missing? 74, 75, 76, _, 78, 79 🎯",
      "options": {"A": "77", "B": "73", "C": "80", "D": "81"},
      "correct_answer": "A"
    },
    {
      "id": 65,
      "difficulty": "medium",
      "question": "What two numbers are missing? 81, 82, _, _, 85, 86 📚",
      "options": {"A": "79, 80", "B": "87, 88", "C": "83, 84", "D": "80, 81"},
      "correct_answer": "C"
    },
    {
      "id": 66,
      "difficulty": "medium",
      "question": "Complete: 87, 88, _, 90, 91, 92 🍩",
      "options": {"A": "86", "B": "89", "C": "93", "D": "94"},
      "correct_answer": "B"
    },
    {
      "id": 67,
      "difficulty": "medium",
      "question": "What number is missing? 94, 95, 96, 97, _, 99 🏠",
      "options": {"A": "93", "B": "98", "C": "100", "D": "101"},
      "correct_answer": "B"
    },
    {
      "id": 68,
      "difficulty": "medium",
      "question": "Find the missing: 11, 12, 13, _, 15, 16 🎪",
      "options": {"A": "10", "B": "17", "C": "18", "D": "14"},
      "correct_answer": "D"
    },
    {
      "id": 69,
      "difficulty": "medium",
      "question": "What two numbers are missing? 22, 23, _, _, 26, 27 🌈",
      "options": {"A": "20, 21", "B": "28, 29", "C": "24, 25", "D": "21, 22"},
      "correct_answer": "C"
    },
    {
      "id": 70,
      "difficulty": "medium",
      "question": "Complete: 31, 32, _, 34, 35, 36 🍕",
      "options": {"A": "37", "B": "30", "C": "38", "D": "33"},
      "correct_answer": "D"
    },
    {
      "id": 71,
      "difficulty": "hard",
      "question": "What number is missing in this pattern? 2, 4, _, 8, 10, 12 🏆",
      "options": {"A": "6", "B": "3", "C": "7", "D": "9"},
      "correct_answer": "A"
    },
    {
      "id": 72,
      "difficulty": "hard",
      "question": "Find the missing: 5, 10, 15, _, 25, 30 🎖️",
      "options": {"A": "12", "B": "18", "C": "20", "D": "22"},
      "correct_answer": "C"
    },
    {
      "id": 73,
      "difficulty": "hard",
      "question": "Complete: 10, 20, _, 40, 50, 60 🥇",
      "options": {"A": "15", "B": "25", "C": "30", "D": "35"},
      "correct_answer": "C"
    },
    {
      "id": 74,
      "difficulty": "hard",
      "question": "What's missing? 3, 6, 9, _, 15, 18 🏅",
      "options": {"A": "10", "B": "11", "C": "12", "D": "13"},
      "correct_answer": "C"
    },
    {
      "id": 75,
      "difficulty": "hard",
      "question": "Find the missing: 4, 8, 12, _, 20, 24 🥈",
      "options": {"A": "13", "B": "14", "C": "16", "D": "18"},
      "correct_answer": "C"
    },
        {
      "id": 76,
      "difficulty": "hard",
      "question": "Complete: 7, 14, 21, _, 35, 42 🎯",
      "options": {"A": "23", "B": "25", "C": "27", "D": "28"},
      "correct_answer": "D"
    },
    {
      "id": 77,
      "difficulty": "hard",
      "question": "What number is missing? 6, 12, 18, _, 30, 36 🏆",
      "options": {"A": "22", "B": "20", "C": "24", "D": "26"},
      "correct_answer": "C"
    },
    {
      "id": 78,
      "difficulty": "hard",
      "question": "Find the missing: 8, 16, 24, _, 40, 48 🎖️",
      "options": {"A": "30", "B": "26", "C": "28", "D": "32"},
      "correct_answer": "D"
    },
  {
  "id": 79,
  "difficulty": "hard",
  "question": "Complete: 9, 18, 27, _, 45, 54 🥇",
  "options": {"A": "30", "B": "36", "C": "33", "D": "39"},
  "correct_answer": "B"
}
,
    {
      "id": 80,
      "difficulty": "hard",
      "question": "What's missing? 11, 22, 33, _, 55, 66 🏅",
      "options": {"A": "40", "B": "42", "C": "44", "D": "46"},
      "correct_answer": "C"
    },
    {
      "id": 81,
      "difficulty": "hard",
      "question": "Find three missing numbers: 15, _, 25, 30, _, 40, _ 🥈",
      "options": {"A": "16, 31, 41", "B": "18, 32, 42", "C": "20, 35, 45", "D": "22, 36, 46"},
      "correct_answer": "C"
    },
    {
      "id": 82,
      "difficulty": "hard",
      "question": "Complete: 12, 24, _, 48, 60, _ 🎯",
      "options": {"A": "40, 76", "B": "30, 66", "C": "36, 72", "D": "32, 68"},
      "correct_answer": "C"
    },
    {
      "id": 83,
      "difficulty": "hard",
      "question": "What two numbers are missing? 20, _, 40, 50, _, 70 🏆",
      "options": {"A": "25, 55", "B": "28, 58", "C": "30, 60", "D": "35, 65"},
      "correct_answer": "C"
    },
    {
      "id": 84,
      "difficulty": "hard",
      "question": "Find the missing: 25, 30, 35, _, 45, 50 🎖️",
      "options": {"A": "36", "B": "38", "C": "40", "D": "42"},
      "correct_answer": "C"
    },
    {
      "id": 85,
      "difficulty": "hard",
      "question": "Complete: 14, 28, 42, _, 70, 84 🥇",
      "options": {"A": "48", "B": "52", "C": "56", "D": "60"},
      "correct_answer": "C"
    },
    {
      "id": 86,
      "difficulty": "hard",
      "question": "What's missing? 16, 32, 48, _, 80, 96 🏅",
      "options": {"A": "56", "B": "60", "C": "64", "D": "68"},
      "correct_answer": "C"
    },
    {
      "id": 87,
      "difficulty": "hard",
      "question": "Find the missing: 18, 36, 54, _, 90, 108 🥈",
      "options": {"A": "60", "B": "66", "C": "72", "D": "78"},
      "correct_answer": "C"
    },
    {
      "id": 88,
      "difficulty": "hard",
      "question": "Complete: 22, 44, 66, _, 110, 132 🎯",
      "options": {"A": "77", "B": "80", "C": "84", "D": "88"},
      "correct_answer": "D"
    },
    {
      "id": 89,
      "difficulty": "hard",
      "question": "What three numbers are missing? 30, _, 50, 60, _, 80, _ 🏆",
      "options": {"A": "32, 62, 82", "B": "35, 65, 85", "C": "40, 70, 90", "D": "45, 75, 95"},
      "correct_answer": "C"
    },
    {
      "id": 90,
      "difficulty": "hard",
      "question": "Find the missing: 24, 48, 72, _, 120, 144 🎖️",
      "options": {"A": "84", "B": "88", "C": "92", "D": "96"},
      "correct_answer": "D"
    },
    {
      "id": 91,
      "difficulty": "hard",
      "question": "Complete: 26, 52, 78, _, 130, 156 🥇",
      "options": {"A": "90", "B": "96", "C": "100", "D": "104"},
      "correct_answer": "D"
    },
    {
      "id": 92,
      "difficulty": "hard",
      "question": "What's missing? 28, 56, 84, _, 140, 168 🏅",
      "options": {"A": "98", "B": "102", "C": "108", "D": "112"},
      "correct_answer": "D"
    },
    {
      "id": 93,
      "difficulty": "hard",
      "question": "Find the missing: 32, 64, 96, _, 160, 192 🥈",
      "options": {"A": "112", "B": "120", "C": "128", "D": "136"},
      "correct_answer": "C"
    },
    {
      "id": 94,
      "difficulty": "hard",
      "question": "Complete: 34, 68, 102, _, 170, 204 🎯",
      "options": {"A": "120", "B": "128", "C": "136", "D": "144"},
      "correct_answer": "C"
    },
    {
      "id": 95,
      "difficulty": "hard",
      "question": "What two numbers are missing? 40, _, 80, 100, _, 140 🏆",
      "options": {"A": "45, 105", "B": "50, 110", "C": "60, 120", "D": "70, 130"},
      "correct_answer": "C"
    },
    {
      "id": 96,
      "difficulty": "hard",
      "question": "Find the missing: 36, 72, 108, _, 180, 216 🎖️",
      "options": {"A": "120", "B": "132", "C": "144", "D": "156"},
      "correct_answer": "C"
    },
    {
      "id": 97,
      "difficulty": "hard",
      "question": "Complete: 38, 76, 114, _, 190, 228 🥇",
      "options": {"A": "130", "B": "140", "C": "150", "D": "152"},
      "correct_answer": "D"
    },
    {
      "id": 98,
      "difficulty": "hard",
      "question": "What's missing? 42, 84, 126, _, 210, 252 🏅",
      "options": {"A": "147", "B": "154", "C": "161", "D": "168"},
      "correct_answer": "D"
    },
    {
      "id": 99,
      "difficulty": "hard",
      "question": "Find the missing: 44, 88, 132, _, 220, 264 🥈",
      "options": {"A": "154", "B": "164", "C": "174", "D": "176"},
      "correct_answer": "D"
    },
    {
      "id": 100,
      "difficulty": "hard",
      "question": "Complete: 46, 92, 138, _, 230, 276 🎯",
      "options": {"A": "160", "B": "172", "C": "184", "D": "196"},
      "correct_answer": "C"
    }
  ]
}