Answer:
I build up castles. I tear down mountains. I make some men blind. I help others to see.
What can burn the eyes, sting the mouth, yet be consumed?
A girl was ten on her last birthday, and will be twelve on her next birthday. How is this possible?
What relies on columns but isn't a house, and asks for help but can't speak itself?
With sharp edged wit and pointed poise. It can settle disputes without making a noise.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.