Answer:
I sit high glowing and watch the world go by. Without me everything would seem dull and dangerous. What am I?
I am lighter than air but a hundred people cannot lift me. Careful! I am fragile!
Though it be cold, I wear no clothes. The frost and snow I never fear. I value neither shoes nor hose and yet I wander far and near. What am I?
What is shaped like a box, has no feet, and runs up and down?
You use me between your head and your toes the more I work the thinner I grow.
The answer I give is yes, but what I mean is no. What was the question?