Answer:
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
What goes up when the rain comes down?
My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go, I must take my bow or else I have nothing to say.
The moon is my father. The sea is my mother. I have a million brothers. I die when I reach land.
I tremble at each breath of air, and yet can heaviest burdens bear.
What language does a billboard speak?