{
  "title": "Basic 2D Shapes - Grade 1 CBSE",
  "total_questions": 100,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "Which shape has 3 sides? 🔺 ◻️ ⚪", "options": {"A": "🔺", "B": "◻️", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 2, "difficulty": "easy", "question": "What shape is this? ⚪", "options": {"A": "Circle", "B": "Square", "C": "Triangle", "D": "Star"}, "correct_answer": "A"},
    {"id": 3, "difficulty": "easy", "question": "How many sides does a square have? ◻️", "options": {"A": "4", "B": "3", "C": "1", "D": "0"}, "correct_answer": "A"},
    {"id": 4, "difficulty": "easy", "question": "Which shape is round? 🔺 ◻️ ⚪", "options": {"A": "⚪", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 5, "difficulty": "easy", "question": "What shape is a door? 🚪", "options": {"A": "Rectangle", "B": "Circle", "C": "Triangle", "D": "Star"}, "correct_answer": "A"},
    {"id": 6, "difficulty": "easy", "question": "Which shape has no corners? ⚪ 🔺 ◻️", "options": {"A": "⚪", "B": "🔺", "C": "◻️", "D": "All have corners"}, "correct_answer": "A"},
    {"id": 7, "difficulty": "easy", "question": "What shape is this? 🔺", "options": {"A": "Triangle", "B": "Circle", "C": "Square", "D": "Heart"}, "correct_answer": "A"},
    {"id": 8, "difficulty": "easy", "question": "How many corners does a triangle have? 🔺", "options": {"A": "3", "B": "4", "C": "1", "D": "0"}, "correct_answer": "A"},
    {"id": 9, "difficulty": "easy", "question": "Which shape is this? ◻️", "options": {"A": "Square", "B": "Circle", "C": "Triangle", "D": "Moon"}, "correct_answer": "A"},
    {"id": 10, "difficulty": "easy", "question": "What shape is a clock? 🕐", "options": {"A": "Circle", "B": "Square", "C": "Triangle", "D": "Rectangle"}, "correct_answer": "A"},
    {"id": 11, "difficulty": "easy", "question": "Which shape has 4 equal sides? 🔺 ◻️ ⚪", "options": {"A": "◻️", "B": "🔺", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 12, "difficulty": "easy", "question": "What shape is this? ⭐", "options": {"A": "Star", "B": "Circle", "C": "Square", "D": "Triangle"}, "correct_answer": "A"},
    {"id": 13, "difficulty": "easy", "question": "How many sides does a circle have? ⚪", "options": {"A": "0", "B": "1", "C": "4", "D": "3"}, "correct_answer": "A"},
    {"id": 14, "difficulty": "easy", "question": "Which shape can roll? 🔺 ◻️ ⚪", "options": {"A": "⚪", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 15, "difficulty": "easy", "question": "What shape is a window? 🪟", "options": {"A": "Square", "B": "Circle", "C": "Triangle", "D": "Star"}, "correct_answer": "A"},
    {"id": 16, "difficulty": "easy", "question": "Which shape has 3 corners? ⭐ 🔺 ◻️", "options": {"A": "🔺", "B": "⭐", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 17, "difficulty": "easy", "question": "What shape is this? ❤️", "options": {"A": "Heart", "B": "Circle", "C": "Square", "D": "Triangle"}, "correct_answer": "A"},
    {"id": 18, "difficulty": "easy", "question": "How many straight sides does a circle have? ⚪", "options": {"A": "0", "B": "1", "C": "4", "D": "Many"}, "correct_answer": "A"},
    {"id": 19, "difficulty": "easy", "question": "Which shape looks like a pizza slice? 🔺 ⚪ ◻️", "options": {"A": "🔺", "B": "⚪", "C": "◻️", "D": "⭐"}, "correct_answer": "A"},
    {"id": 20, "difficulty": "easy", "question": "What shape is a book? 📘", "options": {"A": "Rectangle", "B": "Circle", "C": "Triangle", "D": "Star"}, "correct_answer": "A"},

    {"id": 21, "difficulty": "medium", "question": "Which shape has more sides: 🔺 or ◻️?", "options": {"A": "◻️", "B": "🔺", "C": "Same", "D": "Neither has sides"}, "correct_answer": "A"},
    {"id": 22, "difficulty": "medium", "question": "What shape has 4 corners and 4 equal sides?", "options": {"A": "Square", "B": "Triangle", "C": "Circle", "D": "Star"}, "correct_answer": "A"},
    {"id": 23, "difficulty": "medium", "question": "Which is NOT a 2D shape? ⚪ 🔺 📦", "options": {"A": "📦", "B": "⚪", "C": "🔺", "D": "All are 2D"}, "correct_answer": "A"},
    {"id": 24, "difficulty": "medium", "question": "What shape has 5 points? ⭐ 🔺 ◻️", "options": {"A": "⭐", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 25, "difficulty": "medium", "question": "Which shapes have straight sides? 🔺 ◻️ ⚪", "options": {"A": "🔺 and ◻️", "B": "Only ⚪", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 26, "difficulty": "medium", "question": "What shape has 4 sides but not all equal?", "options": {"A": "Rectangle", "B": "Square", "C": "Triangle", "D": "Circle"}, "correct_answer": "A"},
    {"id": 27, "difficulty": "medium", "question": "Which shape can you trace with one continuous curve? 🔺 ⚪ ◻️", "options": {"A": "⚪", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 28, "difficulty": "medium", "question": "What shape is a stop sign? 🛑", "options": {"A": "Octagon", "B": "Circle", "C": "Square", "D": "Triangle"}, "correct_answer": "A"},
    {"id": 29, "difficulty": "medium", "question": "Which has no beginning or end? 🔺 ⚪ ◻️", "options": {"A": "⚪", "B": "🔺", "C": "◻️", "D": "All have ends"}, "correct_answer": "A"},
    {"id": 30, "difficulty": "medium", "question": "What shape has 6 sides? 🔺 ◻️ ⬢", "options": {"A": "⬢", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 31, "difficulty": "medium", "question": "Which shape is flat? 🔺 📦 ⚪", "options": {"A": "🔺 and ⚪", "B": "Only 📦", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 32, "difficulty": "medium", "question": "What shape is a diamond? 💎", "options": {"A": "Rhombus", "B": "Circle", "C": "Square", "D": "Triangle"}, "correct_answer": "A"},
    {"id": 33, "difficulty": "medium", "question": "Which shape has curved and straight parts? 🌙 ⚪ 🔺", "options": {"A": "🌙", "B": "⚪", "C": "🔺", "D": "All"}, "correct_answer": "A"},
    {"id": 34, "difficulty": "medium", "question": "What shape has 8 sides? ⬢ ◻️ 🛑", "options": {"A": "🛑", "B": "⬢", "C": "◻️", "D": "All"}, "correct_answer": "A"},
   {"id":35,"difficulty":"medium","question":"Which shape is symmetric? 🔺 ⚪ 🌙","options":{"A":"🔺 and ⚪","B":"Only ⚪","C":"Only 🔺","D":"None"},"correct_answer":"A"}
, {"id": 36, "difficulty": "medium", "question": "What shape is a cookie? 🍪", "options": {"A": "Circle", "B": "Square", "C": "Triangle", "D": "Star"}, "correct_answer": "A"},
    {"id": 37, "difficulty": "medium", "question": "Which shape has all sides equal but not 4 sides? 🔺 ⬢ ◻️", "options": {"A": "🔺 and ⬢", "B": "Only ◻️", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 38, "difficulty": "medium", "question": "What shape is a yield sign? ⚠️", "options": {"A": "Triangle", "B": "Circle", "C": "Square", "D": "Rectangle"}, "correct_answer": "A"},
    {"id": 39, "difficulty": "medium", "question": "Which shape can tessellate (fit together without gaps)? 🔺 ◻️ ⚪", "options": {"A": "🔺 and ◻️", "B": "Only ⚪", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 40, "difficulty": "medium", "question": "What shape is a plus sign? ➕", "options": {"A": "Cross", "B": "Circle", "C": "Square", "D": "Triangle"}, "correct_answer": "A"},
    {"id": 41, "difficulty": "medium", "question": "Which shape has parallel sides? ◻️ 🔺 ⚪", "options": {"A": "◻️", "B": "🔺", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 42, "difficulty": "medium", "question": "What shape is a kite? 🪁", "options": {"A": "Kite shape", "B": "Circle", "C": "Square", "D": "Triangle"}, "correct_answer": "A"},
    {"id": 43, "difficulty": "medium", "question": "Which shape has right angles? ◻️ 🔺 ⚪", "options": {"A": "◻️", "B": "🔺", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 44, "difficulty": "medium", "question": "What shape is a hexagon? ⬢ 🔺 ◻️", "options": {"A": "⬢", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 45, "difficulty": "medium", "question": "Which shape has vertices? 🔺 ◻️ ⚪", "options": {"A": "🔺 and ◻️", "B": "Only ⚪", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 46, "difficulty": "medium", "question": "What shape is an arrow? ➡️", "options": {"A": "Arrow", "B": "Triangle", "C": "Rectangle", "D": "Circle"}, "correct_answer": "A"},
    {"id": 47, "difficulty": "medium", "question": "Which shape is a polygon? 🔺 ◻️ ⚪", "options": {"A": "🔺 and ◻️", "B": "Only ⚪", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 48, "difficulty": "medium", "question": "What shape has infinite lines of symmetry? 🔺 ⚪ ◻️", "options": {"A": "⚪", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 49, "difficulty": "medium", "question": "Which shape is a crescent? 🌙 ⭐ ⚪", "options": {"A": "🌙", "B": "⭐", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 50, "difficulty": "medium", "question": "What shape has 7 sides? ⬢ 🛑 🔺", "options": {"A": "Heptagon", "B": "⬢", "C": "🛑", "D": "🔺"}, "correct_answer": "A"},
   {"id":51,"difficulty":"medium","question":"Which shape can be folded into two matching halves? 🔺 ⚪ ◻️","options":{"A":"All","B":"Only 🔺","C":"Only ⚪","D":"🔺 ⚪ ◻️"},"correct_answer":"D"}
, {"id": 52, "difficulty": "medium", "question": "What shape is a trapezoid? 🔺 ◻️ ⏢", "options": {"A": "⏢", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 53, "difficulty": "medium", "question": "Which shape has acute angles? 🔺 ◻️ ⚪", "options": {"A": "🔺", "B": "◻️", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 54, "difficulty": "medium", "question": "What shape is a parallelogram? ◻️ ⏸ 🔺", "options": {"A": "⏸", "B": "◻️", "C": "🔺", "D": "All"}, "correct_answer": "A"},
    {"id": 55, "difficulty": "medium", "question": "Which shape has no parallel sides? 🔺 ◻️ ⬢", "options": {"A": "🔺", "B": "◻️", "C": "⬢", "D": "All have parallel sides"}, "correct_answer": "A"},
    {"id": 56, "difficulty": "medium", "question": "What shape is an oval? 🥚 ⚪ 🔺", "options": {"A": "🥚", "B": "⚪", "C": "🔺", "D": "All"}, "correct_answer": "A"},
    {"id": 57, "difficulty": "medium", "question": "Which shape has perpendicular sides? ◻️ 🔺 ⚪", "options": {"A": "◻️", "B": "🔺", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 58, "difficulty": "medium", "question": "What shape is a pentagon? ⭐ 🔺 ⬟", "options": {"A": "⬟", "B": "⭐", "C": "🔺", "D": "All"}, "correct_answer": "A"},
    {"id": 59, "difficulty": "medium", "question": "Which shape is a quadrilateral? ◻️ 🔺 ⚪", "options": {"A": "◻️", "B": "🔺", "C": "⚪", "D": "All"}, "correct_answer": "A"},
   {"id":60,"difficulty":"medium","question":"What shape has rotational symmetry? 🔺 ⚪ 🌙","options":{"A":"🔺 and ⚪","B":"Only ⚪","C":"Only 🔺","D":"None"},"correct_answer":"A"}
, {"id":61,"difficulty":"medium","question":"Which shape is an isosceles triangle?","options":{"A":"Triangle with two equal sides","B":"Circle","C":"Square","D":"All"},"correct_answer":"A"}
,  {"id": 62, "difficulty": "medium", "question": "What shape is a semicircle? 🔺 ⚪ ◐", "options": {"A": "◐", "B": "🔺", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 63, "difficulty": "medium", "question": "Which shape has all angles equal? ◻️ 🔺 ⬢", "options": {"A": "◻️ and ⬢", "B": "Only 🔺", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 64, "difficulty": "medium", "question": "What shape is a nonagon? ⬢ ⬟ 🛑", "options": {"A": "9-sided shape", "B": "⬢", "C": "⬟", "D": "🛑"}, "correct_answer": "A"},
    {"id": 65, "difficulty": "medium", "question": "Which shape is a scalene triangle? 🔺 📐 ⚪", "options": {"A": "🔺", "B": "📐", "C": "⚪", "D": "All triangles"}, "correct_answer": "A"},
   {"id":66,"difficulty":"medium","question":"What shape has only one line of symmetry?","options":{"A":"Isosceles triangle","B":"Circle","C":"Square","D":"All"},"correct_answer":"A"}
, {"id": 67, "difficulty": "medium", "question": "Which shape is a decagon? ⬟ ⬢ 🔟", "options": {"A": "🔟", "B": "⬟", "C": "⬢", "D": "All"}, "correct_answer": "A"},
    {"id": 68, "difficulty": "medium", "question": "What shape has adjacent sides equal? ⬢ ◻️ 🔺", "options": {"A": "⬢", "B": "◻️", "C": "🔺", "D": "All"}, "correct_answer": "A"},
    {"id": 69, "difficulty": "medium", "question": "Which shape is a regular polygon? ◻️ ⬢ 🔺", "options": {"A": "All", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 70, "difficulty": "medium", "question": "What shape has complementary angles? ◻️ 🔺 ⚪", "options": {"A": "◻️", "B": "🔺", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 71, "difficulty": "medium", "question": "Which shape is an irregular polygon? ⬢ 📐 ◻️", "options": {"A": "📐", "B": "⬢", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 72, "difficulty": "medium", "question": "What shape has supplementary angles? ◻️ 🔺 ⚪", "options": {"A": "◻️", "B": "🔺", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 73, "difficulty": "medium", "question": "Which shape is a convex polygon? 🔺 ⭐ ◻️", "options": {"A": "🔺 and ◻️", "B": "Only ⭐", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 74, "difficulty": "medium", "question": "What shape has interior angles summing to 180°? 🔺 ◻️ ⬢", "options": {"A": "🔺", "B": "◻️", "C": "⬢", "D": "All"}, "correct_answer": "A"},
    {"id": 75, "difficulty": "medium", "question": "Which shape is a concave polygon? 🌙 ⭐ 🔺", "options": {"A": "⭐", "B": "🌙", "C": "🔺", "D": "All"}, "correct_answer": "A"},
    {"id": 76, "difficulty": "medium", "question": "What shape has exterior angles? 🔺 ◻️ ⚪", "options": {"A": "🔺 and ◻️", "B": "Only ⚪", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 77, "difficulty": "medium", "question": "Which shape is an equilateral? 🔺 ◻️ ⚪", "options": {"A": "🔺 and ◻️", "B": "Only ⚪", "C": "All", "D": "None"}, "correct_answer": "A"},
    {"id": 78, "difficulty": "medium", "question": "What shape has diagonals? ◻️ 🔺 ⚪", "options": {"A": "◻️", "B": "🔺", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 79, "difficulty": "medium", "question": "Which shape is a cyclic polygon? ◻️ 🔺 ⬢", "options": {"A": "All can be cyclic", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 80, "difficulty": "medium", "question": "What shape has congruent sides? 🔺 ◻️ ⬢", "options": {"A": "All can have", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},

    {"id": 81, "difficulty": "hard", "question": "Which shape has Euler's formula F+V=E+2 apply? 🔺 ◻️ ⬢", "options": {"A": "All polygons", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 82, "difficulty": "hard", "question": "What shape has golden ratio properties? ⬟ ◻️ 🔺", "options": {"A": "⬟", "B": "◻️", "C": "🔺", "D": "All"}, "correct_answer": "A"},
    {"id": 83, "difficulty": "hard", "question": "Which shape is a fractal? ❄️ 🔺 ◻️", "options": {"A": "❄️", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 84, "difficulty": "hard", "question": "What shape has tangents? ⚪ 🔺 ◻️", "options": {"A": "⚪", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 85, "difficulty": "hard", "question": "Which shape is a Möbius strip? 🔺 ∞ ◻️", "options": {"A": "∞", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 86, "difficulty": "hard", "question": "What shape has chords? ⚪ 🔺 ◻️", "options": {"A": "⚪", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 87, "difficulty": "hard", "question": "Which shape is a tiling polygon? 🔺 ◻️ ⬢", "options": {"A": "All can tile", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 88, "difficulty": "hard", "question": "What shape has an inscribed circle? 🔺 ◻️ ⬢", "options": {"A": "All can have", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 89, "difficulty": "hard", "question": "Which shape is a Platonic solid face? 🔺 ◻️ ⬢", "options": {"A": "All are faces", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 90, "difficulty": "hard", "question": "What shape has a circumscribed circle? 🔺 ◻️ ⬢", "options": {"A": "All can have", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 91, "difficulty": "hard", "question": "Which shape is a Kepler–Poinsot polyhedron face? ⭐ 🔺 ◻️", "options": {"A": "⭐", "B": "🔺", "C": "◻️", "D": "All"}, "correct_answer": "A"},
    {"id": 92, "difficulty": "hard", "question": "What shape has apothem? ⬢ ◻️ 🔺", "options": {"A": "All regular polygons", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 93, "difficulty": "hard", "question": "Which shape is a Catalan solid face? 🔺 ⬢ ◻️", "options": {"A": "All can be", "B": "Only 🔺", "C": "Only ⬢", "D": "None"}, "correct_answer": "A"},
    {"id": 94, "difficulty": "hard", "question": "What shape has a centroid? 🔺 ◻️ ⚪", "options": {"A": "All 2D shapes", "B": "Only 🔺", "C": "Only ◻️", "D": "None"}, "correct_answer": "A"},
    {"id": 95, "difficulty": "hard", "question": "Which shape is an Archimedean solid face? 🔺 ◻️ ⬢", "options": {"A": "All are faces", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 96, "difficulty": "hard", "question": "What shape has a nine-point circle? 🔺 ◻️ ⬢", "options": {"A": "🔺", "B": "◻️", "C": "⬢", "D": "All"}, "correct_answer": "A"},
    {"id": 97, "difficulty": "hard", "question": "Which shape is a Johnson solid face? 🔺 ⬢ ◻️", "options": {"A": "All can be", "B": "Only 🔺", "C": "Only ◻️", "D": "None"}, "correct_answer": "A"},
    {"id": 98, "difficulty": "hard", "question": "What shape has Feuerbach's theorem? 🔺 ◻️ ⚪", "options": {"A": "🔺", "B": "◻️", "C": "⚪", "D": "All"}, "correct_answer": "A"},
    {"id": 99, "difficulty": "hard", "question": "Which shape is a regular tessellation? 🔺 ◻️ ⬢", "options": {"A": "All three", "B": "Only ◻️", "C": "Only 🔺", "D": "None"}, "correct_answer": "A"},
    {"id": 100, "difficulty": "hard", "question": "What shape has Morley's trisector theorem? 🔺 ◻️ ⬢", "options": {"A": "🔺", "B": "◻️", "C": "⬢", "D": "All"}, "correct_answer": "A"}
  ]
}