pi
By holding the bulb up to the socket and waiting for the world to revolve around them EDIT: Rip inbox EDIT 2: Thanks for the gold!
None. It's too dark.
You can't tell it's in the dark
None, because they can't change anything.
Because it's indivisible.
Because if they count one more it would be 2gross to continue.
Let's get rational you can't carry on like this!
It never ends.