Answer:
Only one color, but not one size. Stuck at the bottom, yet easily flies. Present in sun, but not in rain. Doing no harm, and feeling no pain.
Many have heard it, but nobody has ever seen it. It will not speak until spoken to. What is it?
Look into my face and I'm everybody. Scratch my back and I'm nobody.
What has six faces and twenty-one eyes?
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.