woman vs lawyer

A lawyer and an older woman are sitting next to each other on a long
flight. Pumped from winning an important case, the lawyer introduces himself
and asks if she would like to play a fun game. The woman is tired
and just wants to take a nap, so she politely declines and tries to catch a
few winks.The lawyer persists, that the game is a lot of fun. 'I ask you a
question, and if you don't know the answer, you pay me only $5; you ask me
one, and if I don't know the answer, I will pay you $500.'

This catches the woman's attention; and to keep him quiet, she agrees to
play the game.
The lawyer asks the first question.'What' s the distance from the earth to
the moon?' The woman doesn't say a word, reaches in to her purse, pulls out
a five-dollar bill, and hands it to the lawyer.
Now, it's the woman's turn. She asks the lawyer, 'What goes up a
hill with three legs, and comes down with four?'
The lawyer uses his laptop, searches all references. He uses the Airphone;
he surfs the Net and even checks the Library of Congress. He sends e-mails
to all the smart friends he knows, all to no avail. After one hour of
searching he finally gives up. He wakes up the lady and hands her
$500. The woman takes the $500 and goes back to sleep.
The lawyer is going nuts not knowing the answer. He wakes her up and asks,
'Well, so what goes up a hill with three legs and comes down with four? 'The
lady reaches into her purse, hands the lawyer $5 and goes back to
sleep.