Answer:
When you stop and look, you can always see me. If you try to touch, you cannot feel me. I cannot move, but as you near me, I will move away from you. What am I?
When you buy me I am costly, but the only use I have is hanging only. What am I?
I am lighter than air, but a hundred people cannot lift me. Careful, I am fragile. What am I?
I am found in the sea and on land but I do not walk or swim. I travel by foot but I am toeless. No matter where I go, I am never far from home. What am I?
What kind of dog keeps the best time?
The answer I give is yes, but what I mean is no. What was the question?