1 is probably Montipora foliosa, but they are hard to identify. It has coenosteum ridges.
2 could be Acropora efflorescens or A. solitariensis.
3 could be Meandrina meandrites, but hard to tell from the foto. Leptoria can look very similar, and is a Favid.
4 is Pavona frondifera
5 another Montipora without coenostrum ridges. Poss. M. florida.
Hope this helps,