Answer:
It is a path of cow juice spread across the sky but cannot be seen by the naked eye
What is it that has four legs, one head, and a foot?
I'm very tempting, so its said, I have a shiny coat of red, and my flesh is white beneath. I smell so sweet, taste good to eat, and help to guard your teeth.
What surrounds the world, yet dwells within a thimble?
What is that you will break everytime you name it?
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.