A Blonde and a Lawyer

There was a blonde who was sitting next to a lawyer on an airplane. The lawyer was naturally bored, so he kept bugging the blonde to play a game of intelligence with him. The blonde was reluctant, so the lawyer offered her 10 to 1 odds. He told her that every time she could not answer his question, she owed him $5, but every time he could not answer hers, he’d give her $50. The lawyer figured the blonde was so dumb, he could not lose, and the blonde thought for a few minutes and reluctantly accepted to play his game.
The lawyer fires his first question “What is the distance between the Earth and the nearest star?” Without saying a word the blonde handed him $5.
The blonde then asked the lawyer “What goes up a hill with 3 legs and comes back down the hill with 4 legs?” The lawyer’s face looked extremely puzzled. He spent several hours, looking up everything he could on his laptop and even placing numerous air-to-ground phone calls trying to figure out the answer. Finally, the angry and frustrated lawyer handed the blonde $50.00. The blonde put the $50 into her purse quickly without saying a word.
The lawyer was outraged at this point and asked, “Well, what is answer?”
The blonde glanced at him with a smirk on her face and handed him a $5 bill.