Two. One to hold the bulb, and another to spin the story until the bulb fits.
One. He just stands there with the lightbulb and the whole world revolves around him.
No one knows - every time they pick one up, they end up giving it away.
None. They aren't about to change a bulb when flipping a switch has worked for 15 years.
Four - three to cut a hole in the roof and one to change the bulb.
He screwed, nutted, and bolted.
"Nobody said I needed doubles on that!"
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!
Three. One to screw it in and two more to hold down the editor.
He looks at your shoes while he's talking to you instead of his own.
Nothing -- apples don't talk!
Trick Question. You can't fit 50 feminists on a bus.
Blender. How do you get them out? Chips.
Chronic-logically.
The story grows on you.
The Talking Heads