Answer:
I am alive without breath and cold as death. I am never thirsty but always drinking.
A piece of paper that takes most people 3 or 4 years to get.
When you buy me I am costly, but the only use I have is hanging only. What am I?
I am milky white and scares people.
Never ahead, ever behind, yet flying swiftly past, for a child, I last forever, for adults, I'm gone too fast.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?