Answer:
What has a head, a tail, is brown, and has no legs?
My first is in blood and also in battle. My second is in acorn, oak, and apple. My third and fourth are both the same. In the center of sorrow and twice in refrain. My fifth starts eternity ending here. My last is the first of last, Oh Dear.
Break it and it is better, immediately set and harder to break again
What contains zero calories, but if you consume it, you will probably gain weight?
What instrument can make any sound and be heart, but not touched or seen?
What never gets any wetter no matter how hard it rains?