Card 3 of 82
The Elevator
Every morning a man takes the elevator down from his apartment on the 10th floor to the ground floor. On the way home he rides to the 7th floor and walks the remaining stairs, except on rainy days, when he rides all the way to the 10th.
Solution: The man is very short and can only reach the button for the 7th floor. On rainy days he carries an umbrella, which lets him press the button for the 10th.