Answer:
What has to be broken before you can use it ?
If you are unsure how to use one then just ask a flight attendant.
What is part of you and all around you but if it entangles you, it will kill you?
Power enough to smash ships and crush roofs. Yet it still must fear the sun.
Cut the wrong wire and it goes boom
I am a room that has a roof but no walls. What am I?