N! One to change the light bulb, and n-1 to display stereotypical behavioral traits of X!
They couldn't function together.
X-Men.
None. They prefer Natural Light.
You don't know man, you weren't there!
Three. One to administer the anaesthetic one to extract the light bulb and one to offer the socket some vile pink mouthwash.
Two. One to screw it in and one to take credit for it.
There were two Canadians and an American. They put letters in a hat and drew. They got "C-eh", "N-eh", "D-eh". The American didn't know what was going on, but he relayed the message. I know i need to work on my execution.
Nothing
The Sithsonian.
If I've told you n times, I've told you n+1 times...