{
  "title": "Geometry - Quadrilaterals",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "Easy",
      "question": "How many sides does a quadrilateral have?",
      "options": { "A": "4", "B": "3", "C": "5", "D": "6" },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "Easy",
      "question": "Which shape is a quadrilateral?",
      "options": { "A": "Square", "B": "Triangle", "C": "Circle", "D": "Cube" },
      "correct_answer": "A"
    },
    {
      "id": 3,
      "difficulty": "Easy",
      "question": "A rectangle has how many right angles?",
      "options": { "A": "4", "B": "3", "C": "2", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 4,
      "difficulty": "Easy",
      "question": "A square has all sides:",
      "options": {
        "A": "Equal",
        "B": "Different",
        "C": "Three equal",
        "D": "None equal"
      },
      "correct_answer": "A"
    },
    {
      "id": 5,
      "difficulty": "Easy",
      "question": "A quadrilateral always has how many corners?",
      "options": { "A": "4", "B": "3", "C": "2", "D": "5" },
      "correct_answer": "A"
    },
    {
      "id": 6,
      "difficulty": "Easy",
      "question": "Which of these is NOT a quadrilateral?",
      "options": {
        "A": "Triangle",
        "B": "Square",
        "C": "Rectangle",
        "D": "Rhombus"
      },
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "Easy",
      "question": "A rectangle has how many sides?",
      "options": { "A": "4", "B": "3", "C": "5", "D": "6" },
      "correct_answer": "A"
    },
    {
      "id": 8,
      "difficulty": "Easy",
      "question": "A square is a:",
      "options": {
        "A": "Quadrilateral",
        "B": "Circle",
        "C": "Line",
        "D": "Triangle"
      },
      "correct_answer": "A"
    },
    {
      "id": 9,
      "difficulty": "Easy",
      "question": "A rhombus has all sides:",
      "options": {
        "A": "Equal",
        "B": "Different",
        "C": "Round",
        "D": "Curved"
      },
      "correct_answer": "A"
    },
    {
      "id": 10,
      "difficulty": "Easy",
      "question": "A quadrilateral has how many angles?",
      "options": { "A": "4", "B": "3", "C": "5", "D": "2" },
      "correct_answer": "A"
    },
    {
      "id": 11,
      "difficulty": "Easy",
      "question": "Which is a quadrilateral?",
      "options": {
        "A": "Rectangle",
        "B": "Triangle",
        "C": "Circle",
        "D": "Cone"
      },
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "Easy",
      "question": "Which quadrilateral has all sides equal and four right angles?",
      "options": {
        "A": "Square",
        "B": "Rectangle",
        "C": "Rhombus",
        "D": "Parallelogram"
      },
      "correct_answer": "A"
    },
    {
      "id": 13,
      "difficulty": "Easy",
      "question": "A rectangle has:",
      "options": {
        "A": "Opposite sides equal",
        "B": "All sides equal",
        "C": "Curved sides",
        "D": "Three sides"
      },
      "correct_answer": "A"
    },
    {
      "id": 14,
      "difficulty": "Easy",
      "question": "Which quadrilateral has no right angles?",
      "options": {
        "A": "Rhombus (not a square)",
        "B": "Square",
        "C": "Rectangle",
        "D": "Trapezium with right angles"
      },
      "correct_answer": "A"
    },
    {
      "id": 15,
      "difficulty": "Easy",
      "question": "Which shape has four equal sides but no right angles?",
      "options": {
        "A": "Rhombus",
        "B": "Rectangle",
        "C": "Square",
        "D": "Circle"
      },
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "Easy",
      "question": "A quadrilateral is a shape with:",
      "options": {
        "A": "4 sides",
        "B": "3 sides",
        "C": "1 side",
        "D": "5 sides"
      },
      "correct_answer": "A"
    },
    {
      "id": 17,
      "difficulty": "Easy",
      "question": "Which shape has opposite sides parallel?",
      "options": {
        "A": "Parallelogram",
        "B": "Triangle",
        "C": "Circle",
        "D": "Cube"
      },
      "correct_answer": "A"
    },
    {
      "id": 18,
      "difficulty": "Easy",
      "question": "A square has how many lines of symmetry?",
      "options": { "A": "4", "B": "2", "C": "3", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 19,
      "difficulty": "Easy",
      "question": "A kite is a:",
      "options": {
        "A": "Quadrilateral",
        "B": "Triangle",
        "C": "Circle",
        "D": "Line"
      },
      "correct_answer": "A"
    },
    {
      "id": 20,
      "difficulty": "Easy",
      "question": "Which has all angles 90°?",
      "options": {
        "A": "Rectangle",
        "B": "Rhombus",
        "C": "Trapezium",
        "D": "Kite"
      },
      "correct_answer": "A"
    },

    {
      "id": 21,
      "difficulty": "Medium",
      "question": "Which quadrilateral has one pair of parallel sides?",
      "options": {
        "A": "Trapezium",
        "B": "Square",
        "C": "Rectangle",
        "D": "Rhombus"
      },
      "correct_answer": "A"
    },
    {
      "id": 22,
      "difficulty": "Medium",
      "question": "Which quadrilateral has both pairs of opposite sides parallel?",
      "options": {
        "A": "Parallelogram",
        "B": "Kite",
        "C": "Trapezium",
        "D": "Triangle"
      },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "Medium",
      "question": "A square is also a:",
      "options": {
        "A": "Rectangle",
        "B": "Triangle",
        "C": "Pentagon",
        "D": "Circle"
      },
      "correct_answer": "A"
    },
    {
      "id": 24,
      "difficulty": "Medium",
      "question": "Which quadrilateral has all sides equal but no right angles?",
      "options": {
        "A": "Rhombus",
        "B": "Rectangle",
        "C": "Square",
        "D": "Parallelogram"
      },
      "correct_answer": "A"
    },
    {
      "id": 25,
      "difficulty": "Medium",
      "question": "Which quadrilateral has only two pairs of equal sides?",
      "options": {
        "A": "Kite",
        "B": "Trapezium",
        "C": "Parallelogram",
        "D": "Irregular quadrilateral"
      },
      "correct_answer": "A"
    },
    {
      "id": 26,
      "difficulty": "Medium",
      "question": "Which quadrilateral has all sides equal?",
      "options": {
        "A": "Rhombus",
        "B": "Rectangle",
        "C": "Trapezium",
        "D": "Kite"
      },
      "correct_answer": "A"
    },
    {
      "id": 27,
      "difficulty": "Medium",
      "question": "A rectangle and a square both have:",
      "options": {
        "A": "4 right angles",
        "B": "All sides equal",
        "C": "Curved sides",
        "D": "No parallel sides"
      },
      "correct_answer": "A"
    },
    {
      "id": 28,
      "difficulty": "Medium",
      "question": "A rhombus has:",
      "options": {
        "A": "All sides equal",
        "B": "All angles right",
        "C": "Only 3 sides equal",
        "D": "Curved edges"
      },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "Medium",
      "question": "Which quadrilateral must have opposite sides equal?",
      "options": {
        "A": "Parallelogram",
        "B": "Kite",
        "C": "Trapezium",
        "D": "Irregular quadrilateral"
      },
      "correct_answer": "A"
    },
    {
      "id": 30,
      "difficulty": "Medium",
      "question": "A parallelogram has:",
      "options": {
        "A": "Opposite sides parallel",
        "B": "Three sides",
        "C": "Curved edges",
        "D": "Only one angle"
      },
      "correct_answer": "A"
    },
    {
      "id": 31,
      "difficulty": "Medium",
      "question": "Which quadrilateral is NOT guaranteed to have right angles?",
      "options": {
        "A": "Rhombus",
        "B": "Square",
        "C": "Rectangle",
        "D": "None"
      },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "Medium",
      "question": "Which quadrilateral can have exactly two equal angles?",
      "options": {
        "A": "Kite",
        "B": "Square",
        "C": "Rectangle",
        "D": "Rhombus"
      },
      "correct_answer": "A"
    },
    {
      "id": 33,
      "difficulty": "Medium",
      "question": "A quadrilateral with one pair of equal sides is:",
      "options": {
        "A": "Isosceles trapezium",
        "B": "Square",
        "C": "Rectangle",
        "D": "Rhombus"
      },
      "correct_answer": "A"
    },
    {
      "id": 34,
      "difficulty": "Medium",
      "question": "Which shape is both a parallelogram and has all sides equal?",
      "options": { "A": "Rhombus", "B": "Kite", "C": "Trapezium", "D": "None" },
      "correct_answer": "A"
    },
    {
      "id": 35,
      "difficulty": "Medium",
      "question": "A quadrilateral with two pairs of adjacent equal sides is:",
      "options": {
        "A": "Kite",
        "B": "Square",
        "C": "Rectangle",
        "D": "Trapezium"
      },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "Medium",
      "question": "A rectangle is always a:",
      "options": {
        "A": "Parallelogram",
        "B": "Kite",
        "C": "Rhombus",
        "D": "Circle"
      },
      "correct_answer": "A"
    },
    {
      "id": 37,
      "difficulty": "Medium",
      "question": "Which quadrilateral has exactly one pair of opposite parallel sides?",
      "options": {
        "A": "Trapezium",
        "B": "Square",
        "C": "Rhombus",
        "D": "Rectangle"
      },
      "correct_answer": "A"
    },
    {
      "id": 38,
      "difficulty": "Medium",
      "question": "Which has four equal angles but not four equal sides?",
      "options": {
        "A": "Rectangle",
        "B": "Square",
        "C": "Rhombus",
        "D": "Parallelogram"
      },
      "correct_answer": "A"
    },
    {
      "id": 39,
      "difficulty": "Medium",
      "question": "Which quadrilateral has no equal sides?",
      "options": {
        "A": "Irregular quadrilateral",
        "B": "Square",
        "C": "Rhombus",
        "D": "Kite"
      },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "Medium",
      "question": "Which quadrilateral has exactly two pairs of opposite sides parallel?",
      "options": {
        "A": "Parallelogram",
        "B": "Kite",
        "C": "Trapezium",
        "D": "Irregular quadrilateral"
      },
      "correct_answer": "A"
    },

    {
      "id": 41,
      "difficulty": "Hard",
      "question": "A quadrilateral with all sides equal but angles NOT 90° is:",
      "options": {
        "A": "Rhombus",
        "B": "Rectangle",
        "C": "Square",
        "D": "Trapezium"
      },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "Hard",
      "question": "Which quadrilateral must have diagonals intersecting at right angles?",
      "options": {
        "A": "Rhombus",
        "B": "Rectangle",
        "C": "Trapezium",
        "D": "Parallelogram"
      },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "Hard",
      "question": "A square is also a:",
      "options": {
        "A": "Rhombus and Rectangle",
        "B": "Only Rhombus",
        "C": "Only Rectangle",
        "D": "Circle"
      },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "Hard",
      "question": "A quadrilateral with one pair of parallel sides and one pair of equal sides is:",
      "options": {
        "A": "Isosceles trapezium",
        "B": "Rhombus",
        "C": "Square",
        "D": "Rectangle"
      },
      "correct_answer": "A"
    },
    {
      "id": 45,
      "difficulty": "Hard",
      "question": "A parallelogram with all sides equal is:",
      "options": {
        "A": "Rhombus",
        "B": "Rectangle",
        "C": "Square",
        "D": "Trapezium"
      },
      "correct_answer": "A"
    },
    {
      "id": 46,
      "difficulty": "Hard",
      "question": "Which quadrilateral has diagonals of equal length but not necessarily equal sides?",
      "options": {
        "A": "Rectangle",
        "B": "Square",
        "C": "Rhombus",
        "D": "Kite"
      },
      "correct_answer": "A"
    },
    {
      "id": 47,
      "difficulty": "Hard",
      "question": "Which quadrilateral has diagonals that bisect each other?",
      "options": {
        "A": "Parallelogram",
        "B": "Kite",
        "C": "Trapezium",
        "D": "None"
      },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "Hard",
      "question": "Which quadrilateral is both a rhombus and a rectangle?",
      "options": {
        "A": "Square",
        "B": "Parallelogram",
        "C": "Trapezium",
        "D": "Kite"
      },
      "correct_answer": "A"
    },
    {
      "id": 49,
      "difficulty": "Hard",
      "question": "A quadrilateral with two pairs of parallel sides is always a:",
      "options": {
        "A": "Parallelogram",
        "B": "Kite",
        "C": "Trapezium",
        "D": "Pentagon"
      },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "Hard",
      "question": "Which quadrilateral must have opposite angles equal?",
      "options": {
        "A": "Parallelogram",
        "B": "Kite",
        "C": "Trapezium",
        "D": "Irregular quadrilateral"
      },
      "correct_answer": "A"
    },
    {
      "id": 51,
      "difficulty": "Hard",
      "question": "A quadrilateral with diagonals that are perpendicular is:",
      "options": {
        "A": "Rhombus",
        "B": "Rectangle",
        "C": "Trapezium",
        "D": "Parallelogram"
      },
      "correct_answer": "A"
    },
    {
      "id": 52,
      "difficulty": "Hard",
      "question": "Which quadrilateral has diagonals that do NOT bisect each other?",
      "options": {
        "A": "Trapezium",
        "B": "Square",
        "C": "Rhombus",
        "D": "Rectangle"
      },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "Hard",
      "question": "A quadrilateral with only one pair of parallel sides is:",
      "options": {
        "A": "Trapezium",
        "B": "Square",
        "C": "Rhombus",
        "D": "Kite"
      },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "Hard",
      "question": "Which quadrilateral is always equiangular?",
      "options": {
        "A": "Rectangle",
        "B": "Rhombus",
        "C": "Trapezium",
        "D": "Kite"
      },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "Hard",
      "question": "A parallelogram with all angles 90° is a:",
      "options": {
        "A": "Rectangle",
        "B": "Rhombus",
        "C": "Trapezium",
        "D": "Kite"
      },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "Hard",
      "question": "Which quadrilateral has two pairs of adjacent equal sides?",
      "options": {
        "A": "Kite",
        "B": "Square",
        "C": "Rectangle",
        "D": "Rhombus"
      },
      "correct_answer": "A"
    },
    {
      "id": 57,
      "difficulty": "Hard",
      "question": "A quadrilateral with only opposite sides equal is:",
      "options": {
        "A": "Parallelogram",
        "B": "Kite",
        "C": "Trapezium",
        "D": "Square"
      },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "Hard",
      "question": "A quadrilateral with diagonals that bisect each other at 90° is:",
      "options": {
        "A": "Rhombus",
        "B": "Rectangle",
        "C": "Trapezium",
        "D": "Irregular quadrilateral"
      },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "Hard",
      "question": "Which quadrilateral can have no equal sides and no parallel sides?",
      "options": {
        "A": "Irregular quadrilateral",
        "B": "Square",
        "C": "Rectangle",
        "D": "Rhombus"
      },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "Hard",
      "question": "Which quadrilateral is both equiangular and equilateral?",
      "options": {
        "A": "Square",
        "B": "Rectangle",
        "C": "Rhombus",
        "D": "Kite"
      },
      "correct_answer": "A"
    }
  ]
}