Answer:
Lives without a body, hears without ears, speaks without a mouth, to which the air alone gives birth. What is it?
My life can be measured in hours, I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
A seed am I, three letters make my name. Take away two and I still sound the same.
The sun bakes them, the hand breaks them, the foot treads on them, and the mouth tastes them.
What is never used unless it's in a tight place?
What never gets any wetter no matter how hard it rains?