Mensa IQ Test Mensa IQ Odd One Out Puzzles 3

Question 1

Which number is the odd one out: 12, 24, 36, 49, 60, 72?

Accepted Answer

49

Answer

12, 24, 36, 60, and 72 are all multiples of 12 (or at least multiples of 6 that fit the pattern). 49 = 7² is not divisible by any of the common factors. All others are divisible by 12 except 49.

Question 2

Which does NOT belong: Mars, Jupiter, Saturn, Sun, Neptune?

Accepted Answer

Sun

Answer

Mars, Jupiter, Saturn, and Neptune are all planets in our solar system. The Sun is a star, not a planet. It's the central body that the planets orbit around.

Question 3

Which number does NOT fit the pattern: 2, 4, 8, 16, 33, 64?

Accepted Answer

33

Answer

The sequence 2, 4, 8, 16, 64 consists of powers of 2 (2¹, 2², 2³, 2⁴, 2⁶). 33 is not a power of 2. The expected value at that position would be 32 (2⁵).

Question 4

Which figure is the odd one out: equilateral triangle, square, regular pentagon, regular hexagon, scalene triangle?

Accepted Answer

Scalene triangle

Answer

An equilateral triangle, square, regular pentagon, and regular hexagon are all regular polygons (equal sides and angles). A scalene triangle has unequal sides, making it irregular.

Question 5

Which number does NOT belong: 3, 6, 9, 12, 14, 15, 18?

Accepted Answer

14

Answer

3, 6, 9, 12, 15, and 18 are all multiples of 3. 14 is not divisible by 3 (14 ÷ 3 = 4.67), making it the odd one out.

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Mensa IQ Test Mensa IQ Odd One Out Puzzles 3