None, they prefer Natural Light
None, they just all stand around complaining that it won't screw!
If you know the number, you don't know where the socket is.
None. Social scientists do not change light bulbs they search for the root cause as to why the last one went out.
Ten: one to screw it in and nine to say, "Pssh, I can do that."
They both need natural light to survive!
None. They prefer Natural Light.