Why aren't there any knock-knock jokes about the United States?
Because freedom rings.
If H2O is the formula for water, what is the formula for ice?
How can you tell the weather's getting warmer?
If Dorothy missed Kansas, what did Toto miss?
What do horses say to greet each other?
Which president loved to take baths?
What do you call Grandpa when he's in a bad mood at the beach?
Why did the wildcat have such a successful email newsletter?
Where do old bowling balls end up?
Why did my sister bury her lightbulb?
What do two oxygen molecule friends call each other?