hahaha, noo :) 'któryś' is an indefinite pronoun and means 'one (of them/those)' - used when you want to indicate someone or something out of a larger group but you do not tell precisely which one (it's either unknown or it doesn't matter at the moment)
e.g.: Któryś z nich rozmawia przez telefon. - One of them is talking on the phone.
also, notice that this pronoun changes dependently on gender, number or cases (as regular nouns) - i.e. któryś - masculine form, któraś - feminine
ż is hard and ź is soft... for ź I pronounce it with my tongue next to my teeth and for ż/rz with my tongue farther back, and the same with ś(soft)/sz(hard) and ć(soft)/cz(hard).
I just used the soft nd hard explanation because it's easier to me relate it with ш and щ in Russian ;) on youtube you can find a lot of videos about it
Well, I will assume that you dont mean the "t" in "kobiety", because it's explicitly written... but it's the only "t" in this sentence.
My guess is that you mean the sound in the middle of "mężczyźni". "cz" could be considered a bit similar to "t" and sometimes may be transcribed into English as "tsch". Still, it's very different.