Pots, quantity or quality!

A lawyer and a blonde woman are sitting next to each other on a long flight from L.A. to New York. The lawyer leans over to her and asks if she would like to play a fun game. The blonde is tired and just wants to take a nap, so she politely declines and rolls over to the window to catch a few winks. The lawyer persists and explains how the game works:

"I ask you a question, and if you don"t know the answer, you pay me, and visa-versa."
Again, she politely declines and tries to get some sleep. The chauvinistic lawyer figures he will easily win the match since his opponent is a blonde, so he makes another offer:
"Okay, how about this. If you don"t know the answer you pay me only $5, but if I don"t know the answer, I will pay you $50."
This catches the blonde"s attention and,
figuring that there will be no end to this torment unless she plays, she agrees to play the game.
The lawyer asks the first question.
"What"s the distance from the earth
to the moon?"
The blonde doesn"t say a word, reaches into her purse, pulls out a five-dollar bill and hands it to the lawyer. Now it"s the blonde"s turn. She asks the lawyer,
"What goes up a hill with three legs and comes down with four?"
The lawyer looks at her with a puzzled look.
He takes out his laptop computer and searches all his references. He taps into the airphone with his modem and searches the Net and even the Library of Congress. Frustrated, he sends e-mails to all his friends and co-workers - all to no avail. After over an hour of searching for the answer, he finally gives up. He wakes the blonde and hands her $50. The
blonde politely takes the $50 and turns away to get back to sleep. The lawyer, who is more than a little frustrated, wakes the blonde and asks,
"Well, so what IS the answer?"
Again without a word, the blonde reaches into her purse, hands the lawyer $5, and goes back to sleep.