Classic call-and-response style jokes that follow a set pattern.
Knock, knock. Who's there? Stopwatch. Stopwatch who? Stopwatch you're doing and listen to another joke!
Knock, knock. Who's there? Juan. Juan who? Juan too many jokes around here!
Knock, knock. Who's there? Butter. Butter who? Butter open up or I'll melt out here!
Knock, knock. Who's there? Hawaii. Hawaii who? I'm doing good, Hawaii about you?
Knock, knock. Who's there? Owls say. Owls say who? Yes, they do!
Knock, knock. Who's there? Disco. Disco who? Disco knock life!
Knock, knock. Who's there? Boo. Boo who? Are you crying again?
Knock, knock. Who's there? Harry. Harry who? Harry up, I need to use the door!
Knock, knock. Who’s there? Snow. Snow who? Snow use trying to guess, I’ll tell you!
Knock, knock. Who's there? Tank.
Tank who? You're welcome, but I'm a car!
Knock, knock. Who's there? Al.
Al who? Al give you a kiss if you open up!
Knock, knock. Who's there? Justin.
Justin who? Just in time for a great joke!
Knock, knock. Who's there? Wanda.
Ho-ho who? You know, your Santa impression could use some work!
Boo who? Aw, don't cry, it's just me!
Knock, knock. Who's there? Cows go.
Cows go who? No, silly, cows go moo!
Juan who? Juan to hear another joke?