Gave them all twenty dollars

1) I gave them all twenty dollars.

2) I gave twenty dollars to all of them.

3) I gave them twenty dollars.

4) I gave them all two books.

5) I gave two books to all of them.

6) I gave them two books.

In which cases, each person receives twenty dollars/two books and in which cases they all receive twenty dollars/two books collectively?

Gratefully,

Navi