Answer:
I can be sweet or sour. I do not rhyme with any other word
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 stand in one place yet I fill a whole room. I can be filled with molten rock and come in every hue.
I am what one cannot keep, two cannot hold, and three cannot destroy. What am I?
Before Mt. Everest was discovered what was the highest mountain in the world?
What did the piece of wood say when he saw the screwdriver and screws approaching?