Mental Floss 311

The answer to last week’s challenge is: Q: There are 20 people at a party. If each of them is willing to shake hands only with people who are smaller than they are, how many people will shake hands in total?

A: None, because a taller person wants to shake hands with a shorter person. But the shorter person doesn’t want to shake hands with him.

This week’s thinking challenge is …

Q: Mr Smith wanted to build a house with all the windows facing South. How could he do this?

The answer along with a new challenge, next week.

Have an excellent weekend!

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