Answer:
I tremble at each breath of air and yet can heaviest burdens bear.
I can only be played on a windy day
I may be of the eye, in order I am pie. In my center there is a star, I keep medics where they are. What am I?
If two is company and three is a crowd, what is four and five?
I am round. I have only one line. Circle is not my name indeed. What am I?
They come to witness the night without being called, a sailor's guide and a poet's tears. They are lost to the sight each day without the hand of a thief.