Why did the chicken cross the road?
To get to the gay guy's house. Knock, knock. Who's there? Chicken.
Knock knock...
Who's there?
Not Stephen Hawking.
knock knock whos there not stephen hawking
Knock Knock, "Who's There." "A bad joke."
Knock, knock. Who's there? You're adopted.
Did you hear about the guy who made knock-knock jokes? He won the Nobel Prize.
Why did Sarah fall off the swing?
Because she has no arms.
Knock, knock.
Who's there?
Not Sarah.