Q: What is a superhero's favorite part of the joke? A: The "punch" line!

Q: Where's Spiderman's home page? A: On the world wide web.

Q: What's the difference between Batman and a robber? A: Batman can go into a store without robin!!

Q: When did Anakin Skywalker become evil? A: In the sith grade!

source: http://jokes4us.com/miscellaneousjokes/superherojokes.html