I confess, I'm a bit confused. The word for man, above, appears to have a feminine Instrumental case ending. Is it possible that the word for "man" in Russian is of the feminine gender? I'd appreciate an answer from someone more knowledgeable than me.
True, it 'looks' feminine, but it's still masculine and takes masculine pronouns, adjectives, forms of verbs etc. I guess the declension may work in a more 'feminine' way, so if you have problems with that, check the word on wikitionary.