Sunday Times Teaser 2576 – Latin Cube
by Richard England
Published: 5 February 2012 (link)
I have a cube and on each face of it there is a capital letter. I look at one face from the front, hold the top and bottom faces horizontal, and rotate the cube. In this way I can correctly read a four-letter Roman numeral. Secondly, I hold the cube with the original front face underneath and the original top face at the front, and I rotate the cube keeping the new top and bottom faces horizontal. In this way I correctly see another four-letter Roman numeral. Thirdly, I return the cube to its original position and rotate it with the two sides vertical to give another correct four-letter Roman numeral. The sum of the second and third numbers is less than a hundred.
What was the third four-letter Roman numeral seen?