Answer:
Face with a tree skin like the sea. A great beast I am. Yet vermin frightens me.
If you lose one of me, you are upset, bewildered, and perplexed. If you lose two of me, you are blissfully unaware. What am I?
What is the word that even in plain sight remains hidden?
The eight of us go forth not back to protect our king from a foe's attack. What are we?
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
When is it bad luck to see a black cat?