When do doctors get angry?
When they run out of patients.
What room can nobody enter?
A mushroom!
Where do you learn how to make banana splits?
At sundae school
Where do you learn sums?
At summer school
Knock, knock!
Who’s there?
Deja vu.
Deja vu who?
Knock knock!
What do you call a fish wearing a bow tie?
So-fish-ticated
Why do we tell actors to break a leg?
Because they always have a cast.