What's brown and sticky? A stick.
One my younger brother made up when he was about 4 years old:
Why did the plum tree fall down? Because there were too many ducks in it.
And one my dad made up:
A cowboy and one of his cows walk into a bar. The bar tender looks at the cowboy and says, "Hey, we don't serve your kine here."
I admit, I love dry, corny jokes. I'm also a sucker for puns--so much so that as a kid I wanted to write a theatrical production entitled "Pun: A Play on Words."
I'd love to know your favorite jokes, but here are the rules: they have to be clean, non-racist, or derogatory in any way. True humor is fun and healthy and builds people up.