Answer:
Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters. What is it?
What always runs but never walks, often murmurs, never talks, has a bed but never sleeps, has a mouth but never eats?
It is a path of cow juice spread across the sky but cannot be seen by the naked eye
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.
At first, I am nothing. Add something to negate. Add again to oppose. Add again to find the time to draw. Add once more to find nobody at all.
You use it between your head and your toes, the more it works the thinner it grows.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?