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Knock Knock Jokes

50 jokes

The knock knock joke is the first joke most people ever learn, and that is exactly why it keeps working. It hands the listener a script: they know their two lines, they say them, and they walk straight into the punchline they helped build. No other joke format makes the audience a co-author.

What follows is a set of call-and-response gags kept short on purpose. Tap a card to reveal the payoff, then try it on the nearest child, colleague or unsuspecting relative — the format survives bad delivery better than almost anything else on this site.

🇬🇧 EN#k1

What do you call a bear with no teeth?

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🇬🇧 EN#d1

Why don't skeletons fight each other?

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🇬🇧 EN#p1

I used to be a banker,

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🇬🇧 EN#en1

Why don't scientists trust atoms?

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🇬🇧 EN#k2

Why did the cookie go to the doctor?

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🇬🇧 EN#d2

I'm reading a book about anti-gravity.

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🇬🇧 EN#p2

Time flies like an arrow.

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🇬🇧 EN#en2

What do you call fake spaghetti?

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🇬🇧 EN#k3

What did one wall say to the other?

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🇬🇧 EN#d3

What do you call cheese that isn't yours?

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🇬🇧 EN#p3

I'm on a seafood diet.

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🇬🇧 EN#en3

Did you hear about the mathematician who's afraid of negative numbers?

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🇩🇰 DA#k4

Hvad sagde tomaten til den anden tomat?

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🇬🇧 EN#d4

Why did the scarecrow win an award?

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🇩🇰 DA#p4

Jeg plejede at spille klaver på øret,

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Frequently asked questions

Are knock knock jokes only for children?
No. Children love them because the structure is predictable, but adults keep telling them because the format is a reliable icebreaker when a room has gone quiet.
How do I make up my own knock knock joke?
Start at the end. Pick a short phrase, find a name that sounds like the first word of it, and build backwards — the name is always the joke, never the setup.