Answer:
I belong to everyone. Sometimes make you happy sometimes make you sad. I will never end until the day you do.
If you lose me you may cause people around you to lose me too.
I'm a ruler with 12 agents. Half of them work in the darkness. Who am I?
I have no head and a tail I lack but I do have arms and legs and back; I inhabit the palace the tavern the cot 'tis a beggarly residence where I am not. If a monarch were present (I tell you no fable) I still should be placed at the head of the table.
I am a chair that can move. What am I?
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?