Here's a really nerdy math joke, but it still cracks me up.

"Two mathematicians are in a bar. The waitress comes over and hands them their drinks. One mathematicians is complaining about the lack of basic calculus knowledge in today's population. The other one says, 'I bet you $10 that our waitress can answer a calculus question.' Naturally, the first mathematician agrees to the bet. So the other one excuses himself to go to the restroom, but instead goes up to the waitress and says, 'Listen, here's $5. When you come over to the table in a minute, I'm gonna ask you a question. Whatever that question is, I want you to say x to the fourth over four, ok?' She agrees. The man sits back at the table. A minute later the waitress comes over to the table. The second mathematician says to the first, 'ok, ready? Excuse me ma'am, but what is the integral of x cubed?' The waitress looks at the men and says, 'we'll that's easy. It's x to the fourth over four.......plus a constant."