A short man lives on the 20th floor.
Every morning he takes the lift down.
Every evening he rides to the 13th floor and walks the rest.
Except on rainy days, when he rides all the way up.
Why?

Question

Accepted Answer

He’s too short to reach the 20 button. On rainy days he has an umbrella — he uses it to press it. — A classic '80s lateral riddle. The umbrella is the key detail hiding in the exception.

A short man lives on the 20th floor. Every morning he takes the lift down. Every evening he rides to the 13th floor and walks the rest. Except on rainy days, when he rides all the way up. Why?