Answer:
You can hold it without using your hands or arms. What is it?
My first half is normally made of stone, my second is crazy, and I taste sweet when complete.
What can be heard and caught but never seen?
What can you share and still have all for yourself?
My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.
When is it bad luck to see a black cat?