Answer:
They try to beat me, they try in vain. And when I win, I end the pain.
In this place, people lie, people cry, and people ask why. In this place, people sleep, people weep, and people's solitude, they keep. What is it?
What can you throw but not catch?
Who is that with a neck and no head, two arms and no hands? What is it?
I tremble at each breath of air, and yet can heaviest burdens bear.
I have two eyes in the front and a lot of eyes on my tail