Answer:
A caribbean shape that makes ships disappear
My first half is normally made of stone, my second is crazy, and I taste sweet when complete.
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find
What goes in the water red, and comes out black?
Metal or bone I may be, many teeth I have and always bared. Yet my bite harms no one. And ladies delight in my touch.
Why was the cook arrested?