Answer:
What force and strength cannot get through, I with my unique teeth can do. What am I?
I am one small little piece of paper yet sometimes hold lots of value. I am all you need to get in to big events but will cost you. I am an important part of travel. And if lost you're not coming.
I ask no questions, but receive a lot of answers. What am I?
I look at you, you look at me. I raise my right, you raise your left. What am I?
I am filled with garb the price is free. Just return what you don't need.
It's what light turns into in the night