One. They're efficient and don't have humour.
Vince
Vienerslidein
it's this really obscure number. You've probably never even heard of it. No big deal.
One, but he wishes it was two.
A: 50. One to screw in the light bulb and the remaining 49 to guard him .
One. We are efficient and don't like humour.
Prism (Note: I made this joke up. Sorry if this little note refracts from the humour.)