The net of a cube is drawn in the shape of a cross. Four of its squares form a vertical strip, reading A at the top, then B, then C, then D at the foot. A fifth square E is attached to the left-hand edge of C, and the sixth square F to the right-hand edge of C. After the net is folded up, which face lands opposite face C?

A strip of four squares wraps right round the cube, so its 1st and 3rd squares end up facing each other, and so do its 2nd and 4th. The strip reads A, B, C, D, which puts A (1st) opposite C (3rd) and B opposite D. The trap is D: it is drawn immediately below C, but any two squares sharing an edge in the net must become neighbouring faces of the cube, never opposite ones. E and F, sticking out on either side of C, face each other.