One -- but it's an 8 hour minimum.
All, to save this world from the darkness.
It takes four. One to screw in the bulb, and three others to watch and say, "Really dude, you look huge!"
Hmmm........I'll just do a few numbers and get back to you
"We are not prepared to comment on specific numbers at this time."
One, but the light bulb has to want to change.
Because it takes longer to pick up.