Answer:
I save lives on the ground and in the air. What am I?
I have a ring but no fingers. I used to stay still all the time but nowadays I follow you around.
I am an English word that is as long as I am valued. What am I?
I am a tale in childrens' minds. Though an illusion, I occur every night. I give them a fantasy, I give them a fright. What am I?
Flat as a leaf, round as a ring; have two eyes, can't see a thing. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.