Answer:
Handy when you need to measure something or run a kingdom.
You roll it or you buy it, People say you shouldn't try it, Because you may get a stroke, From inhaling all that smoke.
Timid or weak people are said to not have these.
They are the group who manages the winged engines of war.
You are on an electric train. Which direction will the smoke fly in?
What can never be put in a saucepan?