Answer:
You use a knife to slice my head and weep beside me when I am dead.
I've got a beautiful beautiful hall all walled in red velvet with all white armchairs made of bone and in the middle a woman dances.
What did the thief get for stealing the calendar?
What has a face and two hands but no arms or legs?
Born in the ocean and white as snow. When I fall back to water, I disappear without a trace. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.