What are some funny "knock knock" jokes that you care to share?

Knock knock!
~Who’s there?
Interrupting cow!
~Interruptin—-
MOO!

Knock knock
Who’s there?
Boo
Boo who?
There’s no need to cry

Knock Knock!
Who’s there?
Doris.
Doris, who?
Doris locked, that’s why I had to knock!

Knock Knock
Who’s there?
Little old lady!
Little old lady who?
I didn’t know you could yodel!

KNOCK, KNOCK
Who’s there?
Mayer
Mayer, who?
Mayer days be filled with laughter.

Knock Knock
Who’s there?
Apple!
Apple who?

Knock Knock
Who’s there?
Apple!
Apple who?

Knock Knock
Who’s there?
Orange!
Orange who?
Orange you glad I didn’t say Apple again?

@AmWiser….I chuckled a bit upon reading your first one, ‘Doris’. It’s cute, never heard it before. Thanks for brightening my day. :)

Knock knock.
Who’s there?
Dini.
Dini, who?
Houdini.

I grew up entirely without “knock knock” jokes, and I’m astonished they can actually be funny.

@Fyrius
Me too, never heard of it.
I guess it’s American or English?

American, I think.

Knock Knock (now you say who’s there)
Who’s there?
Control Freak (now you say Control Freak who)

I am amazed at how many people don’t get this joke.

Knock Knock
Who’s there?
Amsterdam
Amsterdam who?
Amsterdam tired of these knock knock jokes that I could scream.

@filmfann. I get it and it’s a good joke too. =)

Have you heard the Irish Knock Knock joke?
You start….............