Two, one to hold the bulb and one to rotate the universe.
Twelve. Three to Physically Change the Bulb, Three to Talk About How Complicated it Was and Six to Call themselves Electricians.
By holding the bulb up to the socket and waiting for the world to revolve around them EDIT: Rip inbox EDIT 2: Thanks for the gold!
Two, but you have to get them in there first.
A Basilian.
He holds the light-bulb over the socket and waits for the world to revolve around him.
Me: Please hold all questions until the end.
None. That's a hardware problem.
Light bulb.
It put a ring on it.
Because they thought that they were the center of the universe.
I'm sorry, but the video you filmed is imaginary. Please rotate your phone 90 degrees and try again.
Two. One to hold it in place, another to rotate the universe around it.