Answer:
I am free the first time and the second time, but the third time is going to cost you money. What am I?
I spend the day at the window, go to the table for meals, and hide at night. What am I?
I cut through evil like a double edged sword and chaos flees at my approach. Balance I single-handedly upraise through battles fought with heart and mind instead of with my gaze.
What force and strength cannot get through I with my unique teeth can do.
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
Give it food and it will live, give it water and it will die.