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.
I am always hungry, I must always be fed. The finger I lick will soon turn red. What am I?
I'm white and I'm used for cutting and grinding. When I'm damaged people usually remove me. What am I?
I smell like blue paint pours like green paint and I look like a red truck.
What type of house weighs the least?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.