Answer:
There are several different kinds, but the one you pick doesn't do its job. What is it?
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
I'm light as a feather, yet the strongest man can't hold me for more than 5 minutes.
What is eaten but not grown and was born in water but will disappear if soaked?
The sharp slim blade, that cuts the wind. What is it?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.