A: Thousands because Confucious say many hands make light work.
One to hold the lightbulb, and the rest of the world to revolve around them
None *et al.*
How many data wranglers does it take to change a lightbulb? Just one, but they need a backup.
A: Just one but you need 6000 Russian troops in case he goes on strike!
Happy halloweenie
a handshake
I'm sorry to leave now that I've almost bought the place.
Davey.... are we pouring concrete today "
No, How Long is a Chinaman.
Bayesian.
Many hands make light work.