Answer:
I come without being fetched at night hides away as soon as daylight strikes. Although I may look small I am much mightier than what you can imagine.
Before Mt. Everest was discovered what was the highest mountain in the world?
I am free the first time and second time but the third time is going to cost you money.
What is that you will break even when you name it?
What gets sharper the more you use it?
The answer I give is yes, but what I mean is no. What was the question?