Answer:
I am lighter than air but a hundred people cannot lift me. Careful! I am fragile!
Some will use me, others not. Some have remembered, others forgot. For profit or gain, I'm used expertly. I can't be picked off the ground or tossed into the sea. What am I?
I go up and never come down no matter how hard you wish. As I get higher, more wrinkles crawl on to the face. What am I?
I move without wings Between silken string I leave as you find My substance behind.
My teeth help me suck.
When is it bad luck to see a black cat?