You have a cube painted on all sides. If you cut it into smaller cubes of equal size, how many of the smaller cubes will have paint on exactly two sides?
Category: Brain · Difficulty: hard
Hint: Consider the corners and edges of the cube.
Answer
12
Explanation
For a cube cut into smaller cubes, the cubes with paint on exactly two sides lie on the edges but not at the corners; each edge contributes 2 such cubes, totaling 12 for 6 edges.
This is a hard brain riddle — a tricky one that takes a little thought. The answer is 12.
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