Answer:
Until I am measured, I am not known. Yet, how you miss me when I have flown. What Am I?
I am all around you but you cannot see me. I have no throat but you can hear me. Valued during summer but despised in the winter.
I am an instrument you can hear but cannot touch or see. What am I?
I like to twirl my body but keep my head up high. After I go in, everything becomes tight. What am I?
By Moon or by Sun, I shall be found. Yet, if there's no light around, I am undone. What am I?
Strip the skin under my skin, and my flesh you'll reveal. It tastes sweet and tart, now throw out the peel. What is it?