Hella.
None. They wait for the electrician to make a mistake and yell at them for doing it wrong.
Just one. He holds up the bulb and waits for the world to revolve around him.
One. They stick the bulb in the socket and wait for the world to revolve around them!
FIND OUT NEXT TIME ON DRAGONBALL ZEEEEE! (I really hope this isn't a repost)
I don't know and this is not a laughing matter.
A: Six. One to screw in the lightbulb and five to fend off all those Californians trying to share the experience.
Hella. How long does it take them Days.