Q: Why do centipedes have 100…

Q: Why do centipedes have 100 legs?
A: So they can walk.
Jokes, +1:
A Giants fan, a Padre fan, and a Dodger fan are climbing a mountain and arguing about who loves his team more. The Padre fan insists he's the most loyal. "This is for San Diego!" he yells and jumps off the side of the mountain. Not to be outdone, the Giants fan is next to profess his love for his team. He yells, "This is for San Francisco!" and pushes the Dodger fan off the mountain.