A: None. They have a machine that does that now.
One.
Two. One to actually do it, the other to film it so fundamentalists won't claim that God did it.
Four. One to change it and three to write the environmental-impact statement.
None. It will change when the fire nation attacks
The podiatrist bucks up your feet.
The drummer.
Oh, that's the forklift" ME: OH MY GOD HOW HEAVY ARE YOUR FORKS
A row bot.