A: Because their eggs stink. (They're extinct)
Omlet!
One, because that's an Oeuf.
Because Intermediate value theorem
Because he's a dirty double crosser.
It didn't hit the car's windshield.
A stern rebuke from the ethics committee and an immediate withdrawal of funds.
I'msosaurus
A dinosaur! Ha ha get it Tea-rex Hahaha...
Because their feet stink.
A bird that stinks to high heaven.