Answer:
I build up castles. I tear down mountains. I make some men blind. I help others to see.
Iβm a word, six letters longΝΎ I sometimes enter with a gong. All in order from A to Z, I start with the letter B. What is the word?
Ten men's strength, ten men's length. Ten men can't break it, yet a young boy walks off with it.
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty.
Large as a mountain, small as a pea, Endlessly swimming in a water-less sea.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.