Answer:
I turn everything around, but I cannot move. When you see me, you see you! What am I?
I save lives on the ground and in the air
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead.
I can run but not walk. Wherever I go thought follows close behind.
I'm many people's favorite place, even though many don't remember their stay. You'll love to come but hate to leave. If you get cold, use my sleeve. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.