Answer:
What do you get when you cross a pig with a karate expert?
You throw me out when you use me and take me in when you are done.
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?
What do you call a fish with no eye?
You throw away my outside you cook my inside. Then you eat my outside and you throw away my inside.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.