I was actually just introduced to this game a few weeks ago, at Christmas, by my uncle in-law. He got several books of these things for Christmas, so I asked him what the hell they were, and he and my aunt explained them to me, and how they're apparently all the rage right now.
For those who have no clue about these, they're games of logic kind of like cross word puzzles, but with numbers. I did a few of the beginner level ones and found them to be relatively easy, but I'm sure some of the tougher puzzles can be quite challenging...
No real interest in doing more of them at this point, but I suppose if I see 'em in the Sunday paper or something, I may fiddle around with them a little more.