Mensa Mensa IQ Spatial and Abstract Reasoning Questions and Answers 4

Question 1

Find the missing number: 3, 9, 7, 13, 11, 17, 15, ?

Accepted Answer

21

Answer

The sequence alternates +6 and −2: 15 + 6 = 21.

Question 2

If you look at a transparent clock from behind, what time does it display if the clock face shows 2:30?

Accepted Answer

9:30

Answer

Mirroring a clock horizontally maps 2 to 10; the reflected time is 9:30.

Question 3

A grid has rows labeled 1–4 (top to bottom) and columns A–D (left to right). A pattern of shaded cells appears at (1,A), (2,B), (3,C). Which cell logically continues the diagonal?

Accepted Answer

(4,D)

Answer

The diagonal moves one row down and one column right each step, landing at row 4, column D.

Question 4

How many triangles are in a figure of a large triangle divided by lines connecting midpoints of each side?

Accepted Answer

4

Answer

Connecting midpoints creates 4 congruent triangles inside the original.

Question 5

Which of these letter codes follows the same transformation rule? AB → YZ, CD → WX, then EF → ?

Accepted Answer

UV

Answer

Each pair is mapped to its mirror pair from the end of the alphabet: EF maps to UV.

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Mensa Mensa IQ Spatial and Abstract Reasoning Questions and Answers 4