One, although it's probably screwed in too tight anyway.
To get to the other side!
Hippies don't screw in lightbulbs they screw in dirty sleeping bags.
Ten. One to change it and nine to downvote for no reason.
5/3. The same amount as for whites.
One.
One but the bulb will have to spend four hours in the waiting room.
Only the good die, Jung.