I ensure everyone follows the rules and all. But sometimes I am accused of being partial. The winning team agrees with my name. The losing side thinks me the most hated person of the game.

You'd be surprised how often my name is misspelled. Guess it in one go and you can say you excelled! I am a vegetable that resembles a green tree, or a bush or a miniature forest maybe? I am very healthy but tropically speaking, children don't like me.

Put a window in front of me, and I provide a sort of therapy that costs nothing!

I am usually posed with a ball balanced on the point of my nose, or I can mean to be closed tightly

It is known for having many B’s, but it only starts with one.