The answer to last week’s challenge is. Q: Three coins are placed side by side in a row, touching each other. The leftmost coin (A), the middle coin (B), and the rightmost (C). How can you move A so that it will be between B and C without touching B or C?

A: Give A a gentle tap in the direction of B. B will push C without you having to touch it, forming a gap. Place A into the gap between B and C.

This week’s lateral thinking challenge is.

Q: In which direction is the bus traveling?

The answer will appear along with next week’s Mental Floss.

Have a great weekend!