A man walks into a bar with a dog...

A man walks into a bar with a dog, and says he'll bets $50 his dog can talk. The bartender, thinking that's ridiculous, takes up his offer. The man asks the dog
"What do you find on top of a house?"
"Roof!" the dog replies.
"Hey, that's not fair, ask it a real question!" says the bartender. The man asks again
"What do you find on a tree?"
"Bark!" answers the dog again.
"Are you kidding me? Ask it something a human could answer or I'm kicking you out." The man asks the dog
'Who's the best baseball player?" The dog replies
"Ruth!" and the bartender angrily kicks them out. Outside, the dog looks at it's owner, and says "DiMaggio?"

(Sorry it's kinda lame, but it's one of my favorite)
edit: Thanks for getting me on the front page! I posted it for my cakeday, didn't get the icon until now! Didn't expect it to get so many upvotes!