Answer:
I am black when you buy me, red when you use me. When I turn white, you know it's time to throw me away. What am I?
I'm at the head of an elephant and at the tail of a squirrel
I am a shimmering field that reaches far. Yet I have no tracks and am crossed without paths. What am I?
One pace to the north. Two paces to the east. Two paces to the south. Two paces to the west. One pace to the north.
By myself, I'm practically nothing. Worthless as a leader, but when I follow a group, their strength increases tenfold. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.