I'm getting caught up with the word bias.   Is it bias or biased?  Examples:

Q.  You don't know what the word "impartial" means?
A. It means -- my mind blanked.  It means I'm not biased, is that what you're saying? 

Q.  So are you bias in this case?
Q.  Do you know what the word "bias" means?

A.  I mean, bias towards, against?  I mean, can you --

A. You could ask a third person if they are unbiased.

MS. VOLP:  And I'm going to object to this line of questioning.  It's for the court to decide whether or not she's biased or credible.  It's not for her to decide

IT'S MAKING ME CRAZY!!