Bus Driver's Parents

A little kid walks into a city bus and sits right behind the driver and starts yelling, "If my dad was a bull and my mom a cow I'd be a little bull." The driver starts getting mad at the noisy kid, who continues with, "If my dad was an elephant and my mom a girl elephant I would be a little elephant." The kid goes on with several animals until the bus driver gets angry and yells at the kid, "What if your dad was gay and your mom was a prostitute?!" The kid smiles and says, "I would be a bus driver!"

Math Dog -Riddles

Q: Why did the dog's owner think his dog was a great mathematician?
A: When he asked the dog what six minus six was, the dog said nothing.

Heads and Tails

Q: How is a dog's tail like the center of a tree?
A: It's furthest from the bark!