Translation of "Olds" in Korean

Their mission was to destroy the four olds:

그들의 임무는 네 가지의 낡은 것을 파괴하는 것으로

Nine-year-olds have this tremendous draw in behaviour.

9살 아이들은 말을 매우 안 듣더라구요.

You know, 28 out of 30 nine-year-olds would go:

30명중 28명은 이렇게 말할겁니다: