A: It's not a bulb it's a globe.
It takes four. One to screw in the bulb, and three others to watch and say, "Really dude, you look huge!"
Two. One to change the bulb and one to sing about how grand the old bulb was.
to get to the other side..
None, because they can't change anything.
I don't know, I am on hold.
How many psychiatrists dose it take to change a light bulb? One, but the light bulb has to want to change.