Simultaneous Fouls Quiz

[LaxRef]

NCAA or NFHS rules:

(1) The ball is loose and, as near as the officials can tell, A2 and B2 commit technical fouls at the same time.

(2) A1 has possession and, as near as the officials can tell, A2 and B2 commit technical fouls at the same time.

(3) A1 has possession and, as near as the officials can tell, A1 and A2 commit technical fouls at the same time.

(4) A1 has possession and B1 slashes A1, flag down. Then A1 wards and as near as the officials can tell, A2 commits a personal foul at the same time.

Rulings?

(In each case, I'm picturing the two fouls being called at roughly the same time by different officials, and they do not know which one occured first.)