He divided his boxes into (the) big (ones) and small (ones).

Greetings.

All sentences are mine:
(1) He divided his boxes into big and small.
(2) He divided his boxes into the big and small.
(3) He divided his boxes into big ones and small.
(4) He divided his boxes into big and small ones.
(5) He divided his boxes into the big ones and small.
(6) He divided his boxes into the big and small ones.

Which of them are correct and which are not?
Do those variants which are correct mean the same?

Thanks.