Just one, but it takes a really long time, and the lightbulb has to want to change...
Are easily threaded by one person, with one hand. Doot.
A hundred but they'll all be competing to be the one to change the bulb and bring light to the world.
One
11. 1 to change the lightbulb & 10 to take 200 photos of it & clog my newsfeed.
Clearly, I can see your nuts.
My record is 21 years.
Because he was fighting the Klingons.