A man walks into a bar, notices a very large jar on the counter, and sees that it's filled to the brim with $10 bills. He guesses there must be at least ten thousand dollars in it.
He approaches the bartender and asks, "What's with the money in the jar?"
"Well..., you pay $10, and if you pass three tests, you get all the money in the jar and the keys to a brand new Ferrari."
The man certainly isn't going to pass this up, so he asks, "What are the three tests?"