The best knock-knock jokes

Fast way to screw up someone's Knock Knock joke...? "It's open."
Vote: has 80.65 % from 278 votes. Send joke:
More jokes about: knock-knock, life
Knock knock! Who's there? Yah! Yah who? Naaah, bro, I prefer google.
Vote: has 70.33 % from 145 votes. Send joke:
More jokes about: geek, IT, knock-knock
One day a man heard knocking at his door. He opened the door only to see a small snail sitting there smiling. The guy picked the snail up and threw it as far as he possibly could. Three years later he heard knocking at the door again. He opened the door to see the snail. The snail said, "What the hell was that all about?"
Vote: has 65.38 % from 120 votes. Send joke:
More jokes about: animal, knock-knock
Knock Knock. Who's there! Ice cream! Ice cream who? Ice cream if you don't let me in!
Vote: has 64.38 % from 132 votes. Send joke:
More jokes about: food, knock-knock
Knock Knock! Who's There? Figs Figs who? Figs the doorbell, it's broken!
Vote: has 64.29 % from 113 votes. Send joke:
More jokes about: kids, knock-knock
Knock Knock. Who's there? Opportunity. Don't be silly - opportunity doesn't knock twice!
Vote: has 64.02 % from 109 votes. Send joke:
More jokes about: knock-knock, life
Knock Knock! Who's there? Zany Zany who? Zany body home?
Vote: has 63.35 % from 116 votes. Send joke:
More jokes about: kids, knock-knock
Knock Knock! Who's there? Justin Justin who? Justin time for dinner!
Vote: has 61.94 % from 82 votes. Send joke:
More jokes about: kids, knock-knock
"Knock, knock.Who's there?" very long pause... "Java."
Vote: has 60.54 % from 160 votes. Send joke:
More jokes about: IT, knock-knock
Knock-knock. Who's there? To. To who? No, to whom.
Vote: has 60.35 % from 67 votes. Send joke:
More jokes about: knock-knock, nerd