Auditor vs Lawyer

This is a Malaysian joke passed round in the internet and by just changing the destination, it appears to fit the description of a couple who I know very well.

An auditor and a lawyer are seated next to each other on a flight from KL to Kuching. The lawyer asks if the auditor would like to play a fun game?

The auditor, tired, just wants to take a nap, politely declines and rolls over to the window to catch a few winks.

The lawyer persists and explains that the game is easy and a lot of fun.
She explains, "I ask you a question, and if you don't know the answer, you pay me $5.00, and vice versa."

Again, he declines and tries to get some sleep.

The lawyer, now agitated, says, "Okay, if you don't know the answer you pay me $5.00, and if I don't know the answer, I will pay you $500.00."

This catches the auditor's attention and, figuring there will be no end to this torment unless he plays, agrees to the game.

The lawyer asks the first question. "What's the distance from the Earth to the moon?"

The auditor doesn't say a word, reaches into his purse, pulls out a $5.00 bill and hands it to the lawyer.

"Okay", says the lawyer, "your turn."

He asks the lawyer, "What goes up a hill with three legs and comes down with four legs?"

The lawyer, puzzled, takes out her laptop computer and searches all her references, no answer.
She taps into the air phone with her modem and searches the net and the library, no answer. Frustrated, she sends Emails to all her friends and co-workers, to no avail.

After an hour, she wakes the auditor, and hands $500.00. The auditor says, "Thank you," and turns back to get some more sleep.

The lawyer, who is more than a little miffed, wakes the auditor and asks, "Well, what's the answer?"

Without a word, the auditor reaches into his purse, hands the lawyer $5.00, and goes back to sleep.