Answer:
Squeeze me and I cry tears as red as flesh, but my heart is made of stone. What am I?
I can be swallowed But I can also swallow you.
I have green hair a round red head and a long thin white beard.
I fly forever Rest never.
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.
The warmer I am the fresher I am.