He already told you so.
So they know if they are going to the gig, or coming from it.
I don't know
Tell them to take off their hats
Two. One to post the joke and one to post a better punchline in the comments.
Microwave
Cereal pleasure to meet you!
You pay him for the pizza.
They both got accepted to Yale.
Just one. He holds up the light bulb, and the world revolves around him