Answer:
Long legs, crooked thighs, little head, and no eyes.
It is a path of cow juice spread across the sky but cannot be seen by the naked eye
It is weightless, you can see it. If you put it in a barrel it will make it lighter?
I am so simple that I can only point. Yet I guide men all over the world.
Sometimes black, sometimes white, I have veins but no blood
Break me and I am better immediately set and harder to be broken again.