The top knock-knock joke, as chosen by Buzzfeed, is "Who's there? A broken pencil. A broken pencil who? Never mind. It's pointless." Other top knock-knock jokes include "Knock-knock. Who's there? Europe. Europe who? No, you're a poo."Continue Reading
Another knock-knock joke in the top 10 is "Knock knock. Who's there? Theodore! Theodore who? Theodore wasn't open so I knocked." This joke is followed at number four by "Knock knock. Who's there? Amos. Amos who? A mosquito."
The fifth top knock-knock joke is humorously silly. It goes as follows: "Knock knock. Who's there? Al. Al who? Al give you a kiss if you open this door." The next in the list is even more silly: "Knock knock. Who's there? Cows go. Cows go who? No, silly. Cows go moo." Meanwhile, grammar enthusiasts enjoy the following joke: "Knock knock. Who's there? To. To Who? To Whom."
More knock-knock jokes are available from Funology.com. This site has many clean jokes for kids to enjoy. One example of a knock-knock joke from this site is "Knock knock. Who's there? Noah. Noah who? Noah good place we can get something to eat?" Another example is "Knock knock. Who's there? Lettuce. Lettuce who? Lettuce in; it's cold out here."Learn more about Jokes