Answer:
I belong to everyone. Sometimes make you happy sometimes make you sad. I will never end until the day you do.
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
I have a title and many pages. I am a genteel of genteel descent. I am a killer veteran of war. I am a slave to my lord pledged to his service.
I'm orange when long I'm white when short. What am I?
I begin and have no end. Eventually I will be the end of all that has begun.
A little house full of meat, no door to go in and eat.