Answer:
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.
Fatherless and Motherless, born without sin. Roared when it entered the world, And never spoke again.
I pass before the sun, yet make no shadow. I'm all around you, but you cannot see me. What am I?
I have three feet but no arms or legs
I have a hundred legs but cannot stand a long neck but no head and I eat the maid's life. What am I?
The answer I give is yes, but what I mean is no. What was the question?