Answer:
I am a good state, there can be no doubt of it; But those who are in, entirely are out of it.
What I am filled, I can point the way. When I am empty. Nothing moves me. I have two skins. One without and one within.
Thirty men and ladies two, gathered for a festive do; Dressed quite formal, black and white; soon movement turned to nasty fight.
Which word contains 26 letters but only three syllables?
What's as small as a mouse but guards a house like a lion?
People take me on walks and I run and have fun. What am I?