Answer:
What asks but never answers?
I know a word of letters three. Add two, and fewer there will be!
One by one we fall from heaven down into the depths of past, And our world is ever upturned so that yet some time we’ll last.
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
A precious stone, as clear as diamond. Seek it out while the sun's near the horizon. Though you can walk on water with its power, try to keep it, and it'll vanish in an hour.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.