It can vary, but It's quite hilarious to watch.
He was changing the lightbulb before it was cool. rimshot
Does it really have to be a lightbulb
One, plus or minus one.
Seven - one to actually change the bulb and six to complain that they liked the old one better.
By watching corn!
Oh wait, nevermind. I'm an idiot...*
An Inkling.
Very little.
It varies from person to person.
Unix