Mensa IQ Test Spatial Reasoning 2

Question 1

A cube has 6 faces. If you unfold it into a flat cross shape, how many faces are visible from the top?

Accepted Answer

6

Answer

When a cube is unfolded (net), all 6 faces are laid flat and visible from above.

Question 2

Which 3D shape has exactly 5 faces, 8 edges, and 5 vertices?

Accepted Answer

Square pyramid

Answer

A square pyramid has 1 square base + 4 triangular faces = 5 faces, 8 edges, and 5 vertices.

Question 3

If you rotate the letter 'N' by 180 degrees, what does it look like?

Accepted Answer

N

Answer

Rotating N by 180° around its center produces the same letter N due to its rotational symmetry.

Question 4

How many cubes are needed to build a 3×3×3 hollow cube (outer shell only)?

Accepted Answer

26

Answer

Total cubes in solid 3×3×3 = 27. Interior cube removed = 1. Shell cubes = 27 - 1 = 26.

Question 5

A shape has exactly 2 lines of symmetry. Which of the following could it be?

Accepted Answer

Rectangle

Answer

A rectangle has exactly 2 lines of symmetry: horizontal and vertical through the midpoints of opposite sides.

Mensa Practice Test Practice Test