{
  "title": "Line of Symmetry (Symmetry) - Grade 3",
  "total_questions": 100,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "A line of symmetry divides a shape into two...", "options": {"A": "Different parts", "B": "Equal halves", "C": "Big and small parts", "D": "Three parts"}, "correct_answer": "B"},
    {"id": 2, "difficulty": "easy", "question": "How many lines of symmetry does a square have?", "options": {"A": "1", "B": "2", "C": "4", "D": "8"}, "correct_answer": "C"},
    {"id": 3, "difficulty": "easy", "question": "Which letter has a vertical line of symmetry?", "options": {"A": "B", "B": "E", "C": "A", "D": "R"}, "correct_answer": "C"},
    {"id": 4, "difficulty": "easy", "question": "A circle has how many lines of symmetry?", "options": {"A": "None", "B": "4", "C": "10", "D": "Unlimited"}, "correct_answer": "D"},
    {"id": 5, "difficulty": "easy", "question": "Which shape has exactly one line of symmetry?", "options": {"A": "Equilateral Triangle", "B": "Square", "C": "Circle", "D": "Isosceles Triangle"}, "correct_answer": "D"},
    {"id": 6, "difficulty": "easy", "question": "The letter 'H' has ___ lines of symmetry.", "options": {"A": "0", "B": "1", "C": "2", "D": "4"}, "correct_answer": "C"},
    {"id": 7, "difficulty": "easy", "question": "A rectangle has lines of symmetry that are...", "options": {"A": "Only vertical", "B": "Only horizontal", "C": "Both vertical and horizontal", "D": "Diagonal"}, "correct_answer": "C"},
    {"id": 8, "difficulty": "easy", "question": "Which number has a horizontal line of symmetry?", "options": {"A": "0", "B": "1", "C": "3", "D": "8"}, "correct_answer": "D"},
    {"id": 9, "difficulty": "easy", "question": "A scalene triangle has how many lines of symmetry?", "options": {"A": "0", "B": "1", "C": "2", "D": "3"}, "correct_answer": "A"},
    {"id": 10, "difficulty": "easy", "question": "The line of symmetry is also called the...", "options": {"A": "Folding line", "B": "Mirror line", "C": "Center line", "D": "Both A and B"}, "correct_answer": "D"},
    {"id": 11, "difficulty": "easy", "question": "How many lines of symmetry does a regular pentagon have?", "options": {"A": "3", "B": "4", "C": "5", "D": "6"}, "correct_answer": "C"},
    {"id": 12, "difficulty": "easy", "question": "Which of these shapes has no line of symmetry?", "options": {"A": "Parallelogram", "B": "Rectangle", "C": "Square", "D": "Circle"}, "correct_answer": "A"},
    {"id": 13, "difficulty": "easy", "question": "The letter 'O' has...", "options": {"A": "One line of symmetry", "B": "Two lines of symmetry", "C": "Many lines of symmetry", "D": "No symmetry"}, "correct_answer": "C"},
    {"id": 14, "difficulty": "easy", "question": "A heart shape has ___ line(s) of symmetry.", "options": {"A": "0", "B": "1", "C": "2", "D": "4"}, "correct_answer": "B"},
    {"id": 15, "difficulty": "easy", "question": "Which of these is a line of symmetry for an isosceles triangle?", "options": {"A": "The line from the top vertex to the midpoint of the base", "B": "Any line through the triangle", "C": "A line parallel to the base", "D": "There is no line of symmetry"}, "correct_answer": "A"},
    {"id": 16, "difficulty": "easy", "question": "How many lines of symmetry does a star have?", "options": {"A": "4", "B": "5", "C": "6", "D": "10"}, "correct_answer": "B"},
    {"id": 17, "difficulty": "easy", "question": "The letter 'X' has...", "options": {"A": "Only vertical symmetry", "B": "Only horizontal symmetry", "C": "Both vertical and horizontal symmetry", "D": "No symmetry"}, "correct_answer": "C"},
    {"id": 18, "difficulty": "easy", "question": "A line of symmetry can be...", "options": {"A": "Only straight", "B": "Only curved", "C": "Both straight and curved", "D": "Only diagonal"}, "correct_answer": "A"},
    {"id": 19, "difficulty": "easy", "question": "Which shape has the most lines of symmetry?", "options": {"A": "Square", "B": "Equilateral Triangle", "C": "Circle", "D": "Rectangle"}, "correct_answer": "C"},
    {"id": 20, "difficulty": "easy", "question": "If you fold a shape along its line of symmetry, the two halves will...", "options": {"A": "Be different", "B": "Match exactly", "C": "Become smaller", "D": "Change color"}, "correct_answer": "B"},
    {"id": 21, "difficulty": "medium", "question": "How many lines of symmetry does a rhombus have?", "options": {"A": "0", "B": "1", "C": "2", "D": "4"}, "correct_answer": "C"},
    {"id": 22, "difficulty": "medium", "question": "Which capital letter has exactly two lines of symmetry?", "options": {"A": "H", "B": "I", "C": "O", "D": "X"}, "correct_answer": "D"},
    {"id": 23, "difficulty": "medium", "question": "A regular hexagon has how many lines of symmetry?", "options": {"A": "3", "B": "6", "C": "9", "D": "12"}, "correct_answer": "B"},
    {"id": 24, "difficulty": "medium", "question": "Which of these shapes has exactly one line of symmetry?", "options": {"A": "Kite", "B": "Square", "C": "Circle", "D": "Regular Octagon"}, "correct_answer": "A"},
    {"id": 25, "difficulty": "medium", "question": "The number '8' has ___ lines of symmetry.", "options": {"A": "0", "B": "1", "C": "2", "D": "4"}, "correct_answer": "C"},
    {"id": 26, "difficulty": "medium", "question": "How many lines of symmetry does an isosceles trapezium have?", "options": {"A": "0", "B": "1", "C": "2", "D": "4"}, "correct_answer": "B"},
    {"id": 27, "difficulty": "medium", "question": "Which of these letters has no line of symmetry?", "options": {"A": "A", "B": "B", "C": "C", "D": "F"}, "correct_answer": "D"},
    {"id": 28, "difficulty": "medium", "question": "A shape has 4 lines of symmetry. What could it be?", "options": {"A": "Rectangle", "B": "Square", "C": "Rhombus", "D": "Kite"}, "correct_answer": "B"},
    {"id": 29, "difficulty": "medium", "question": "The letter 'M' has a ___ line of symmetry.", "options": {"A": "Vertical", "B": "Horizontal", "C": "Diagonal", "D": "No"}, "correct_answer": "A"},
    {"id": 30, "difficulty": "medium", "question": "How many lines of symmetry does a regular octagon have?", "options": {"A": "4", "B": "6", "C": "8", "D": "10"}, "correct_answer": "C"},
    {"id": 31, "difficulty": "medium", "question": "Which of these has a vertical line of symmetry?", "options": {"A": "The letter 'E'", "B": "The letter 'B'", "C": "The letter 'D'", "D": "The letter 'K'"}, "correct_answer": "C"},
    {"id": 32, "difficulty": "medium", "question": "A parallelogram has...", "options": {"A": "One line of symmetry", "B": "Two lines of symmetry", "C": "Rotational symmetry", "D": "No symmetry"}, "correct_answer": "D"},
    {"id": 33, "difficulty": "medium", "question": "Which shape has an infinite number of lines of symmetry?", "options": {"A": "Square", "B": "Triangle", "C": "Line", "D": "Circle"}, "correct_answer": "D"},
    {"id": 34, "difficulty": "medium", "question": "The letter 'S' has...", "options": {"A": "Vertical symmetry", "B": "Horizontal symmetry", "C": "Rotational symmetry", "D": "No symmetry"}, "correct_answer": "C"},
    {"id": 35, "difficulty": "medium", "question": "How many lines of symmetry does a regular pentagon have?", "options": {"A": "3", "B": "4", "C": "5", "D": "6"}, "correct_answer": "C"},
    {"id": 36, "difficulty": "medium", "question": "Which of these numbers has both vertical and horizontal symmetry?", "options": {"A": "0", "B": "1", "C": "3", "D": "8"}, "correct_answer": "D"},
    {"id": 37, "difficulty": "medium", "question": "A shape has 2 lines of symmetry. It could be a...", "options": {"A": "Rectangle", "B": "Square", "C": "Both A and B", "D": "Circle"}, "correct_answer": "C"},
    {"id": 38, "difficulty": "medium", "question": "The letter 'Z' has...", "options": {"A": "Vertical symmetry", "B": "Horizontal symmetry", "C": "Rotational symmetry", "D": "No symmetry"}, "correct_answer": "C"},
    {"id": 39, "difficulty": "medium", "question": "How many lines of symmetry does a regular heptagon have?", "options": {"A": "5", "B": "6", "C": "7", "D": "8"}, "correct_answer": "C"},
    {"id": 40, "difficulty": "medium", "question": "Which of these has exactly one line of symmetry?", "options": {"A": "The letter 'T'", "B": "The letter 'U'", "C": "The letter 'V'", "D": "The letter 'W'"}, "correct_answer": "A"},
    {"id": 41, "difficulty": "hard", "question": "A shape has an order of rotational symmetry of 4. How many lines of symmetry does it have?", "options": {"A": "2", "B": "4", "C": "6", "D": "8"}, "correct_answer": "B"},
    {"id": 42, "difficulty": "hard", "question": "Which of these letters has exactly two lines of symmetry?", "options": {"A": "H", "B": "I", "C": "O", "D": "X"}, "correct_answer": "D"},
    {"id": 43, "difficulty": "hard", "question": "How many lines of symmetry does a regular nonagon have?", "options": {"A": "7", "B": "8", "C": "9", "D": "10"}, "correct_answer": "C"},
    {"id": 44, "difficulty": "hard", "question": "A shape has 6 lines of symmetry. What is its order of rotational symmetry?", "options": {"A": "3", "B": "6", "C": "12", "D": "18"}, "correct_answer": "B"},
    {"id": 45, "difficulty": "hard", "question": "Which of these has no line of symmetry but has rotational symmetry?", "options": {"A": "Parallelogram", "B": "Isosceles Triangle", "C": "Kite", "D": "Rectangle"}, "correct_answer": "A"},
    {"id": 46, "difficulty": "hard", "question": "The letter 'N' has rotational symmetry of order...", "options": {"A": "1", "B": "2", "C": "3", "D": "0"}, "correct_answer": "B"},
    {"id": 47, "difficulty": "hard", "question": "How many lines of symmetry does a regular decagon have?", "options": {"A": "8", "B": "9", "C": "10", "D": "12"}, "correct_answer": "C"},
    {"id": 48, "difficulty": "hard", "question": "Which of these shapes has the same number of lines of symmetry as a square?", "options": {"A": "Rectangle", "B": "Rhombus", "C": "Kite", "D": "Parallelogram"}, "correct_answer": "B"},
    {"id": 49, "difficulty": "hard", "question": "A shape has an infinite number of lines of symmetry. It must be a...", "options": {"A": "Circle", "B": "Line", "C": "Point", "D": "Any of the above"}, "correct_answer": "A"},
    {"id": 50, "difficulty": "hard", "question": "Which of these has both vertical and horizontal lines of symmetry?", "options": {"A": "The letter 'O'", "B": "The letter 'X'", "C": "The number '8'", "D": "All of the above"}, "correct_answer": "D"},
    {"id": 51, "difficulty": "hard", "question": "How many lines of symmetry does a regular heptagon have?", "options": {"A": "5", "B": "6", "C": "7", "D": "8"}, "correct_answer": "C"},
    {"id": 52, "difficulty": "hard", "question": "A shape has rotational symmetry of order 2 but no line symmetry. It could be...", "options": {"A": "A rectangle", "B": "A parallelogram", "C": "An isosceles triangle", "D": "A trapezium"}, "correct_answer": "B"},
    {"id": 53, "difficulty": "hard", "question": "Which of these capital letters has no line symmetry and no rotational symmetry?", "options": {"A": "F", "B": "N", "C": "Z", "D": "P"}, "correct_answer": "D"},
    {"id": 54, "difficulty": "hard", "question": "A shape has 8 lines of symmetry. What is its order of rotational symmetry?", "options": {"A": "2", "B": "4", "C": "8", "D": "16"}, "correct_answer": "C"},
    {"id": 55, "difficulty": "hard", "question": "Which of these is NOT a symmetrical object in nature?", "options": {"A": "A honeycomb", "B": "A sunflower", "C": "A lightning bolt", "D": "A starfish"}, "correct_answer": "C"},
    {"id": 56, "difficulty": "hard", "question": "The symbol for recycling (♻) has...", "options": {"A": "Line symmetry", "B": "Rotational symmetry", "C": "Both", "D": "Neither"}, "correct_answer": "B"},
    {"id": 57, "difficulty": "hard", "question": "How many lines of symmetry does a regular decagon (10 sides) have?", "options": {"A": "8", "B": "9", "C": "10", "D": "12"}, "correct_answer": "C"},
    {"id": 58, "difficulty": "hard", "question": "A shape has all its sides equal but no lines of symmetry. It could be a...", "options": {"A": "Square", "B": "Rhombus", "C": "Regular Pentagon", "D": "This is impossible"}, "correct_answer": "B"},
    {"id": 59, "difficulty": "hard", "question": "Which of these has the same number of lines of symmetry as a square?", "options": {"A": "Rectangle", "B": "Rhombus", "C": "Kite", "D": "Parallelogram"}, "correct_answer": "B"},
    {"id": 60, "difficulty": "hard", "question": "A shape has an odd number of lines of symmetry. Its order of rotational symmetry is...", "options": {"A": "The same as the number of lines", "B": "Half the number of lines", "C": "Twice the number of lines", "D": "Cannot be determined"}, "correct_answer": "A"}
  ]
}