A: Your car.
Dual air bags.
A Lamb-orghini!
They have to use TWO hands.
None, they don't use light bulbs. They live in caves and use no forms of artificial energy because they wouldn't want to be perceived as hypocrites or morons.
One to change the lightbulb and one to drive down to Kent to pick him/her up.
a manual.
I don't know. It's a Mistery.