How many petals around the rose?
I figured it out in under a minute (my first guess was half right, three subsequent rolls allowed me to fine tune and confirm the answer).
If you know the answer, please don’t spoil the fun for others. Let ’em figure it out for themselves. ;)
Related: Bill Gates and Petals Around the Rose at a 1977 computer conference. Memorizing dice rolls. Fascinating.
(via MeFi)