Why was the pupil naughty?

Joke: Why did the pupil wear sports shirt to school even though he was supposed to wear his school uniform which isn't sports shirts? Because he wanted to SKIP school!

Joke: Knock knock!
Who's there?
Gorilla!
Gorilla who?
Gorilla burger! I've got the buns.

Joke: Knock knock!
Who's there?
Theresa!
Theresa who?
Theresa courier for you!

Joke: Knock knock!
Who's there?
Al!
Al who?
Al give you a hug if you open the door!

Joke: Why did 1/5 go to the masseuse?

Joke: Why didn't the baby oyster share its pearl?