Why do dogs bark?
Because they bark up the wrong tree.
Why do people walk backwards?
To reverse park.
Humpty Dumpty sat on the wall. He cracked open and out came a joke.
Knock knock
Who's there?
Cracked
Cracked who?
Cracked Humpty Dumpty
Why do camels have 4 humps?
They don't. They only have 2.