Fan: "I see you won a silver medal at the Olympics. What's it for?¨" Athlete: "It's for telling knock knock jokes." Fan: "And what's that gold medal for?" Athlete: "For stopping."
Knock Knock. Who's There? Justin. Justin who? Your justin time to wipe my ass!
One night, there was a knock on my door... i open it and no one was there every night I would get the same knock and still no one was there... Untill the morning I was just making myself some tea as a person knocks on my door it was a black man he walk in and stole my tea .... i said to myself did he just mug me .... I still didn't know who was knocking on the doors at night Untill one night I opened my door and there was a floating mug I was still confused.
Knock Knock Who's there! B-4! B-4 who? B-4 you take the diploma, shake the dean's hand.
"Have you heard my knock-knock joke?" asked the blonde. "No," said the brunette. "Okay," said the blonde, "you start."
Knock, Knock! Who's there? Doctor Doctor who? That's a great TV show, isn't it?
Knock knock? Who's there? Hitler! Hitler who? You Know, the man who kills jews.
Knock knock. Who's there? Allahu Akbar. Allahu AK- BOOM!!!
Q: Why can't you tell blondes knock-knock jokes? A: Because they leave to go answer the door.