Knock, knock. Who's there? Olive. Olive who? Olive a sudden, the lights went out!

Knock, knock. Who's there? Camilla. Camilla who? Camilla closer, I can't hear you!

Knock, knock. Who's there? Fig. Fig who? Fig leaf, that's all I'm wearing!

Knock, knock. Who's there? Wendy. Wendy who? Wendy bell rings, can I come in?

Knock, knock. Who's there? Sherman. Sherman who? Sherman is stuck in your door, can you let him out?

Knock, knock. Who's there? Olive. Olive who? Olive a sudden, the computer turned off!

Knock, knock. Who's there? Donut. Donut who? Donut forget to shut the door behind you!

Knock, knock. Who's there? Camel. Camel who? Camel all play a game?

Knock, knock. Who's there? Ruin. Ruin who? Ruin the joke, spoil the fun!

Knock, knock. Who's there? Boo. Boo who? Boo who? Boo-tiful joke!

Knock, knock. Who's there? Lettuce. Lettuce who? Lettuce in for more fun!

Knock, knock. Who's there? Alpaca. Alpaca who? Alpaca lunch, wanna join me?

Knock, knock. Who's there? Isabel. Isabel who? Isabel ringing any bells yet?

Knock, knock. Who's there? Olive. Olive who? Olive you from my head tomatoes!

Knock, knock. Who's there? Cow says. Cow says who? Cow says I'm hilarious!

Knock, knock. Who's there? Stopwatch. Stopwatch who? Stopwatch while I tell another joke!

Knock, knock. Who's there? Nicholas. Nicholas who? Nicholas the question, I'll answer it!

Knock, knock. Who's there? Howl. Howl who? Howl you know it's me without opening the door?

Knock, knock. Who's there? Lionel. Lionel who? Lionel mess if you don't open the door!

Knock, knock. Who's there? Yogurt. Yogurt who? Yogurt to know when to hold 'em, know when to fold 'em!

Knock, knock. Who’s there? Alma. Alma who? Alma-ighty!