Captain Cam, a children's entertainer that my kids have seen at a few events, must have a lot of time on his hands. He answers kids' questions on his video blog and he's getting pretty good at it.

Here's a recent entry where he answers a question about math:

Watching Captain Cam in person is fantabulous! The kids really like his magic tricks, songs and general craziness.

Here are some more links to help you find out more about this crime fighting super hero:
Captain Cam on mySpace
Home page