Short simple riddles for teens

What is it that goes up and goes down but does not move?

I'm in your phone. Sometimes I laugh. Sometimes I cry. I even flip you off from time to time. What am I ?

A natural state, I'm sought by all. Go without me and you shall fall. You do me when you spend, and use me when you need to eat to no end.

I go around all the places, cities, towns and villages, but never come inside. What am I?

What type of cheese is made backwards?

What do you throw out when you want to use it, but take in when you don't want to use it?

We hurt without moving. We poison without touching. We bear the truth and the lies. We are not to be judged by our size. What are we?

What has six faces, but does not wear makeup. It also has twenty-one eyes, but cannot see?

As small as your thumb, I am light in the air. You may hear me before you see me, but trust that I'm there. What am I?

You see a boat filled with people. It has not sunk, but when you look again you don't see a single person on the boat. Why?