Answer:
What can be cracked before it's used?
I am higher than the king
I row quickly with four oars, but never come out from under my own roof. What am I?
I run around the streets all day. Under the bed or by the door I sit at night, never alone. My tongue hangs out, waiting to be fed during the day. What am I?
I can be in your body but never on your placemat. I'm always better when I'm fresh, but you'll never see me in the flesh. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.