Why do jehovah witness avoid truth?

It seems like the majority of jw's always get out of subject and context just like there teachings. Why can't they answer the question, instead they forget about the question and state something else. Can it be that they can not admit to the truth and try do drag you into a different subject. Is this the group they call the faithful and discreet slave? Would a faithful person admit to truth or disregard it? I think a biase person would disregard it? Please correct if i am wrong. "I guess everybody has questions" but you might get a better response if you post them.