This is the 246th most frequent Serbian word.
неке
The Serbian word "неке" means "some" in English.
Here, 'неке' refers to 'ствари' (things) and expresses an indefinite selection or subset of items.
Не знам зашто неке ствари не функционишу.
I don't know why some things don't work.
In this example, 'неке' signifies a partial selection from a larger group, specifically the memories he mentioned.
Поменуо је неке од својих најбољих успомена.
He mentioned some of his best memories.
In this sentence, 'неке' is used as an indefinite article meaning 'some' in reference to the noun 'људе' (people), indicating an unspecified few.