On a flight, a lawyer and an older man were sitting next to each other.
The lawyer asked the senior if he’d like to play a game. The older man was tired, and he told the lawyer he only wanted to sleep.
But the lawyer insisted.
“Here’s how it works,” he said. “I’ll ask you a question. If you can’t come up with the answer, you have to give me a dollar. Then it’s your turn to ask me one. But if I can’t answer it, I have to give you $20.”
The senior figured if he just got this over with, maybe he could get some sleep. So he agreed to play.
The first question from the lawyer was “How far apart are the earth and the moon?”
The senior stayed completely silent, reached for a dollar, and gave it to the lawyer. Then he said, “My turn. What walks upstairs backward and comes downstairs forward?”
The lawyer was stumped, so he gave the older man a twenty. The senior stuffed the twenty in his coat and went immediately back to sleep.
The lawyer woke up the older man and said, “I have to know. What walks upstairs backward and comes downstairs forward?”
The senior got out his wallet, gave the lawyer a dollar, and went back to sleep.