Answer:
Crooked as a rainbow, and slick as a plate, Ten thousand horses can't pull it straight.
What binds two people yet touches only one?
You get many of me, but never enough. After the last one, your life soon will snuff. You may have one of me but one day a year, When the last one is gone, your life disappears.
At first, I am nothing. Add something to negate. Add again to oppose. Add again to find the time to draw. Add once more to find nobody at all.
Reaching stiffly for the sky, I bare my fingers when its cold. In warmth I wear an emerald glove and in between I dress in gold.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.