Just two. One to politely ask and the other to politely help.
Only one but he has to manufacture it first.
None. There are no light bulbs in the closet. Another one: Why is Justin Bieber so pale Because there's no light inside the closet
All of them.
Two: One to change it, and the other one to change it back again.
Nobody. He was too 'Freud.
If you need to ask if the bench is an art piece.
Eh?
Grade eh
A stand up driver.
Send them to a concentration camp!