Answer:
When I am alive, people sing. When I am dead, people clap hands. What am I?
Drop me and the world will shatter. You can always find me where you empty your bladder. What am I?
What goes up a chimney down but can't go down a chimney up?
I walk on 4 legs in the morning 2 legs at noon and 3 legs at night.
Adored by few, feared and hated by many. Mistress of the entire universal reason, master in the art of numbers. Some may have solved many of my mysteries, but there are still many of them to find. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.