It takes two. One to change the bulb and the other to kick the switch.
A hundred but they'll all be competing to be the one to change the bulb and bring light to the world.
1001 1 to offer up the bulb and 1000 to scream 'Get in the hole'
I don't know but that reminds me of a similar joke my uncle used to tell...
One, although it's probably screwed in too tight anyway.
Just one but he has to coordinate ten other professionals who are doing this quiet complicated task.
Two.
To switch sides
OC) Too many persuasive esses.
Warren Buffett once have me quickly kicked out of a game of bridge? When it was my turn to bid I kept saying, "Go fish".
He was making a scene!
He was just two tired.