Answer:
I'm blue at day and black at night. I do contain some creatures born and died. What am I?
Everyone in the world needs me. They generously give me but never take me. What am I?
My rings are not worth much, but they do tell my age. What am I?
I ask no questions, but receive a lot of answers. What am I?
I live above a star who never burns. I have 11 neighbors but they never turn. My initials are p q r and sometimes s.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.