Short mystery riddles for teens

I am covered in feathers or foam, yet I have no wings and cannot fly. I am the only place where you can lose and find your mind at the same time.

What is so delicate that saying its name breaks it?

I can only live where there is light, but I die if the light shines on me. What am I?

There was a plane crash every single person died. Who survived?

This is as light as a feather, yet no man can hold it for long. What am I?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

I can fly but I have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?

You can hold it without seeing or touching it! What is that?

The more you have of it, the less you see. What is it?

All about, but cannot be seen. Can be captured, but cannot be held. No throat, but can be heard. What is it?