Answer:
The eight of us go forth not back to protect our king from a foe's attack. What are we?
Drop me and the world will shatter. You can always find me where you empty your bladder. What am I?
I carry you down a gentle stream.
I am known for my natural tuxedo and marching. What am I?
I lose my head in the morning and regain it back at night. What am I?
A little house full of meat, no door to go in and eat.