IQ Test MCQs
IQ Test MCQs are structured to measure intelligence quotient through questions on logical reasoning, pattern recognition, sequences, number series, and spatial visualization. These MCQs are commonly used in aptitude and psychological tests for recruitment and academic assessments. Practicing these questions enhances your problem-solving ability and critical thinking. They play a key role in evaluating cognitive ability, especially in tests by NTS, FPSC, PPSC, and other hiring agencies. These MCQs are not only useful for exams but also great for brain training. They help develop attention to detail, memory, and logical deduction, all of which are vital for career advancement and academic success.
Q: Spot the odd number: 64, 49, 36, 20, 25
A) 64
B) 20
C) 36
D) 49
✅ Correct Answer: B
Explanation: 20 is not a perfect square unlike the others.
Q: Recognize the logic: 10, 20, 30, 50, 80, ?
A) 110
B) 140
C) 130
D) 120
✅ Correct Answer: D
Explanation: The difference grows by 10 then 20 then 30; next difference = 40 → 80 + 40 = 120.
Q: Mark the unusual pair: Apple:Fruit, Carrot:Vegetable, Rose:Flower, Bread:Plant
A) Bread:Plant
B) Rose:Flower
C) Carrot:Vegetable
D) Apple:Fruit
✅ Correct Answer: A
Explanation: Bread is not a plant; it is processed food, unlike the others.
Q: Locate the error in the pattern: 2, 4, 8, 14, 22, 32
A) 4
B) 32
C) 14
D) 8
✅ Correct Answer: B
Explanation: The correct pattern should add 2, 4, 6, 8...; 22 + 10 = 32 is fine.
Q: Find the ratio: If 2:4 = 4:X, then X = ?
A) 8
B) 6
C) 12
D) 10
✅ Correct Answer: A
Explanation: 2:4 is 1:2, so 4:X must also be 1:2 → X = 8.
Q: Calculate: If 12 + 6 = 72, then 10 + 5 = ?
A) 60
B) 65
C) 55
D) 50
✅ Correct Answer: A
Explanation: Multiply both numbers: 12×6 = 72, 10×5 = 50.
Q: Decide the next shape: Circle, Triangle, Square, Pentagon, ...
A) Heptagon
B) Hexagon
C) Star
D) Octagon
✅ Correct Answer: B
Explanation: Each shape adds one side in sequence; hexagon has six.
Q: Solve the riddle: Mary is 16, her sister is half her age. How old will the sister be when Mary is 40?
A) 30
B) 32
C) 20
D) 36
✅ Correct Answer: A
Explanation: The sister is 8 years younger, so when Mary is 40, she’ll be 32.
Q: Pick the mismatch: Gold:Metal, Mercury:Liquid, Carbon:Gas, Helium:Gas
A) Mercury:Liquid
B) Gold:Metal
C) Carbon:Gas
D) Helium:Gas
✅ Correct Answer: C
Explanation: Carbon is a solid, not a gas; the rest are correctly matched.
Q: Find the missing number: 5, 10, 20, ?, 80
A) 60
B) 25
C) 40
D) 30
✅ Correct Answer: C
Explanation: Each number is doubled; 20 × 2 = 40.