{
  "title": "Leap Year (Time and Calendar) - Grade 4 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "How many days are in a leap year? 🐇",
      "options": { "A": "365", "B": "366", "C": "364", "D": "367" },
      "correct_answer": "B"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Which month gets an extra day in a leap year? 📅",
      "options": {
        "A": "January",
        "B": "February",
        "C": "March",
        "D": "December"
      },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "How many days are in February in a NON-leap year? ❄️",
      "options": { "A": "28", "B": "29", "C": "30", "D": "31" },
      "correct_answer": "A"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "A leap year happens every ____ years. 🔄",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "C"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Was the year 2020 a leap year? 🤔",
      "options": { "A": "Yes", "B": "No", "C": "Maybe", "D": "Only sometimes" },
      "correct_answer": "A"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "What is the date of the extra day in a leap year? 🎉",
      "options": {
        "A": "February 28",
        "B": "February 29",
        "C": "February 30",
        "D": "March 1"
      },
      "correct_answer": "B"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "How many days are in February in a LEAP year? 🌈",
      "options": { "A": "28", "B": "29", "C": "30", "D": "31" },
      "correct_answer": "B"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Will the year 2025 be a leap year? 🤨",
      "options": { "A": "Yes", "B": "No", "C": "Can't tell", "D": "Maybe" },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "A person born on February 29 is called a... 🎂",
      "options": {
        "A": "Leapling",
        "B": "Jumper",
        "C": "Special Baby",
        "D": "Yearly Baby"
      },
      "correct_answer": "A"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Which of these is a leap year? 📆",
      "options": { "A": "2018", "B": "2019", "C": "2021", "D": "2024" },
      "correct_answer": "D"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "How many hours are in a leap year? 🕒",
      "options": { "A": "8760", "B": "8784", "C": "8766", "D": "8800" },
      "correct_answer": "B"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "The next leap year after 2024 will be... 🔮",
      "options": { "A": "2025", "B": "2026", "C": "2027", "D": "2028" },
      "correct_answer": "D"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "In a leap year, which day comes after February 28? ➡️",
      "options": {
        "A": "February 27",
        "B": "February 29",
        "C": "March 1",
        "D": "February 30"
      },
      "correct_answer": "B"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "The 2020 Summer Olympics were postponed and held in which year? 🏅",
      "options": {
        "A": "2016",
        "B": "2020",
        "C": "2021",
        "D": "2024"
      },
      "correct_answer": "C"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "If a non-leap year has 52 weeks and 1 day, a leap year has 52 weeks and ___ days. 📊",
      "options": { "A": "1", "B": "2", "C": "3", "D": "4" },
      "correct_answer": "B"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Is the year 2100 a leap year? 👴",
      "options": {
        "A": "Yes",
        "B": "No",
        "C": "Maybe",
        "D": "Only in some calendars"
      },
      "correct_answer": "B"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "A leap year is also called a... 📖",
      "options": {
        "A": "Bounce Year",
        "B": "Extra Year",
        "C": "Bissextile Year",
        "D": "Long Year"
      },
      "correct_answer": "C"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "How many leap years are there in 12 years? ⏳",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "B"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Which animal is sometimes associated with 'leap'? 🐸",
      "options": {
        "A": "Rabbit",
        "B": "Frog",
        "C": "Kangaroo",
        "D": "Grasshopper"
      },
      "correct_answer": "B"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "The year 2000 was a special leap year. True or False? ✨",
      "options": {
        "A": "True",
        "B": "False",
        "C": "Partially True",
        "D": "Not sure"
      },
      "correct_answer": "A"
    },

    {
      "id": 21,
      "difficulty": "medium",
      "question": "If 2024 is a leap year, which of these will NOT be a leap year? 🤯",
      "options": { "A": "2028", "B": "2032", "C": "2030", "D": "2036" },
      "correct_answer": "C"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Rohan was born on Feb 29, 2012. On what date does he usually celebrate his birthday in a non-leap year? 🎂",
      "options": {
        "A": "Feb 28",
        "B": "March 1",
        "C": "Feb 27",
        "D": "March 2"
      },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "From 2016 to 2024 (including both), how many leap years are there? 🗓️",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "B"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "A century year (like 1900) is a leap year only if it is divisible by... 🤔",
      "options": { "A": "4", "B": "100", "C": "400", "D": "10" },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "How many total extra days are added in 4 consecutive years (including one leap year)? 📆",
      "options": { "A": "1", "B": "2", "C": "3", "D": "4" },
      "correct_answer": "A"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "If Jan 1st of a leap year is a Monday, what day will Jan 1st of the next year be? 🔄",
      "options": {
        "A": "Monday",
        "B": "Tuesday",
        "C": "Wednesday",
        "D": "Thursday"
      },
      "correct_answer": "C"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "A plant is watered every 4 years on Feb 29. If last watered in 2020, when is the next watering? 🌱",
      "options": { "A": "2023", "B": "2024", "C": "2025", "D": "2026" },
      "correct_answer": "B"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Which of these centuries had the most leap years? 🏛️",
      "options": {
        "A": "1900-1999",
        "B": "2000-2099",
        "C": "1700-1799",
        "D": "1800-1899"
      },
      "correct_answer": "B"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "A leap year has 366 days. How many full weeks and extra days is that? 📅",
      "options": {
        "A": "52 weeks, 1 day",
        "B": "52 weeks, 2 days",
        "C": "51 weeks, 3 days",
        "D": "53 weeks, 0 days"
      },
      "correct_answer": "B"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "If Feb 1st of a leap year is a Saturday, what day is March 1st? 🗓️",
      "options": {
        "A": "Saturday",
        "B": "Sunday",
        "C": "Monday",
        "D": "Tuesday"
      },
      "correct_answer": "B"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "How many odd days are there in a leap year? (Odd days = extra days over complete weeks)",
      "options": { "A": "1", "B": "2", "C": "3", "D": "0" },
      "correct_answer": "B"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "From 2000 to 2020, how many leap years were there? ✨",
      "options": { "A": "4", "B": "5", "C": "6", "D": "7" },
      "correct_answer": "C"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "A leap year always starts and ends on the same day of the week. True or False? 🤨",
      "options": {
        "A": "True",
        "B": "False",
        "C": "Sometimes True",
        "D": "Cannot say"
      },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "If a leap year starts on a Thursday, on what day does it end? 🏁",
      "options": {
        "A": "Wednesday",
        "B": "Thursday",
        "C": "Friday",
        "D": "Saturday"
      },
      "correct_answer": "C"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "What is the sum of days in January and February in a leap year? ❄️",
      "options": { "A": "58", "B": "59", "C": "60", "D": "61" },
      "correct_answer": "C"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "The rule for leap years is: Divisible by 4, but not by 100 unless also divisible by ___. ✍️",
      "options": { "A": "200", "B": "400", "C": "4", "D": "10" },
      "correct_answer": "B"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "A leap year has how many more hours than a regular year? 🕐",
      "options": { "A": "12", "B": "24", "C": "36", "D": "48" },
      "correct_answer": "B"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "If 2024 is a leap year, which of these is also definitely a leap year? 🧐",
      "options": { "A": "2100", "B": "2048", "C": "2200", "D": "2300" },
      "correct_answer": "B"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "In a leap year, the day February 29 falls on the same weekday as which other date? 🎯",
      "options": {
        "A": "January 4",
        "B": "March 1",
        "C": "April 1",
        "D": "December 31"
      },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "From 1996 to 2016, how many total leap years? 📈",
      "options": { "A": "4", "B": "5", "C": "6", "D": "7" },
      "correct_answer": "C"
    },

    {
      "id": 41,
      "difficulty": "hard",
      "question": "If the year 2000 was a leap year, will the year 2400 be a leap year? 🤔",
      "options": {
        "A": "Yes",
        "B": "No",
        "C": "Maybe",
        "D": "Only if divisible by 4"
      },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "How many leap years will there be between the years 2001 and 2101 (excluding both)? 🔢",
      "options": { "A": "23", "B": "24", "C": "25", "D": "26" },
      "correct_answer": "B"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "A 'leap second' is sometimes added to clocks. Is this related to leap years? ⏱️",
      "options": {
        "A": "Yes, same reason",
        "B": "No, different reason",
        "C": "Sometimes",
        "D": "Only in some countries"
      },
      "correct_answer": "B"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "If you are 16 years old in 2024 (a leap year), how many leap year birthdays have you had if you were born on Feb 29? 🎂",
      "options": {
        "A": "3",
        "B": "4",
        "C": "5",
        "D": "6"
      },
      "correct_answer": "B"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "What is the probability that a randomly chosen year from 1 to 4000 is a leap year? 🎲",
      "options": {
        "A": "About 1/4",
        "B": "About 97/400",
        "C": "About 1/2",
        "D": "About 1/3"
      },
      "correct_answer": "B"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "A non-leap year starts on a Friday. If the very next year is a leap year, on what day will January 1 fall? 📅",
      "options": {
        "A": "Friday",
        "B": "Saturday",
        "C": "Sunday",
        "D": "Monday"
      },
      "correct_answer": "B"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "The Gregorian calendar adds a leap year to correct an error. What is it correcting? 🌍",
      "options": {
        "A": "Earth spins faster",
        "B": "Earth's orbit is 365.25 days",
        "C": "Moon's orbit",
        "D": "Seasons change"
      },
      "correct_answer": "B"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "How many total days are there from Jan 1, 2020 (leap year) to Jan 1, 2024? 🗓️",
      "options": { "A": "1460", "B": "1461", "C": "1462", "D": "1463" },
      "correct_answer": "B"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Which of these pairs are BOTH leap years? 👯",
      "options": {
        "A": "1700 & 1800",
        "B": "2000 & 2400",
        "C": "2100 & 2200",
        "D": "1900 & 2100"
      },
      "correct_answer": "B"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "If March 1 of a leap year is a Wednesday, what day was January 1 of that year? ❄️",
      "options": {
        "A": "Friday",
        "B": "Saturday",
        "C": "Sunday",
        "D": "Monday"
      },
      "correct_answer": "B"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "From 1901 to 2000, how many leap years were there? 👴",
      "options": {
        "A": "24",
        "B": "25",
        "C": "26",
        "D": "27"
      },
      "correct_answer": "B"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "A company issues a report every 4 years on Feb 29. If the 5th report was in 2020, what year was the 1st report? 📊",
      "options": { "A": "2000", "B": "2004", "C": "2008", "D": "2012" },
      "correct_answer": "B"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "What is the day on February 29, 2024, if January 1, 2024, is a Monday? 🗓️",
      "options": {
        "A": "Monday",
        "B": "Tuesday",
        "C": "Wednesday",
        "D": "Thursday"
      },
      "correct_answer": "D"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "If you skip every leap year while counting from 2000 to 2020, how many years do you count? 🔢",
      "options": {
        "A": "15",
        "B": "16",
        "C": "17",
        "D": "18"
      },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "The Julian calendar had a leap year every 4 years with no exceptions. How many days would it gain over 400 years compared to Earth's orbit? 🌞",
      "options": {
        "A": "About 1",
        "B": "About 3",
        "C": "About 4",
        "D": "About 8"
      },
      "correct_answer": "B"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "In which of these years will Feb 29 fall on a Sunday if Jan 1 is a Thursday? 📅",
      "options": {
        "A": "2004",
        "B": "2012",
        "C": "2020",
        "D": "2028"
      },
      "correct_answer": "A"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "How many leap years have there been from 2010 up to and including 2024? 👧",
      "options": {
        "A": "2",
        "B": "3",
        "C": "4",
        "D": "5"
      },
      "correct_answer": "C"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "A cycle repeats every 28 years in the calendar. How many leap years are in one complete cycle? 🔄",
      "options": { "A": "6", "B": "7", "C": "8", "D": "9" },
      "correct_answer": "B"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "If the leap year rule was 'divisible by 4' with no exceptions, which current month would eventually become a summer month in the Northern Hemisphere over centuries? 🌍",
      "options": {
        "A": "December",
        "B": "February",
        "C": "July",
        "D": "All months"
      },
      "correct_answer": "D"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "What is the remainder when the number of days in a leap year is divided by 7? ➗",
      "options": { "A": "0", "B": "1", "C": "2", "D": "3" },
      "correct_answer": "C"
    }
  ]
}