Each of the six faces of a cube is numbered by one of the six digits from 1 to 6. This cube is shown in its four different positions in the figures 1, 2, 3 and 4.

Consider the following statements:
I. Figures 2 and 3 are sufficient to know as to which face is opposite to the face numbered 6.
II. Figures 2 and 3 are sufficient to know as to which face is opposite to the face numbered 4.
III. Figures 1 and 4 are sufficient to know as to which face is opposite to the face numbered 3.
Which of the statements given above are correct?