Lateral thinking

Think outside the box to solve these mind-bending riddles.

Coming clean

Two sisters cleared up an old shed in their garden. When they’d finished, one had a dirty face and the other had a clean face. The sister with the clean face washed hers using a hose at the side of the house but the one with the dirty face didn’t. Why?

Every which way

What vehicle moves independently inside another moving vehicle but in a different direction?