Answer:
What gets closer when you blink?
Three little letters, a paradox to some. The worse that it is, the better it becomes.
Not born, but from a Mother's body drawn. I hang until half of me is gone. I sleep in a cave until I grow old. Then valued for my hardened gold.
What turns everything around but does not move?
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.