Hahaha, that's a dumb talent of mine. There's this game my 3rd grade teacher had the class play, where you assign number values to letters (A=1, B=2, and so on), and you try to find words that equal exactly 100.
So, for example A-F-G-H-A-N-I-S-T-A-N is 1+6+7+8+1+14+9+19+20+1+14 = 100
Well, I became obsessed with the game back then, and now I can't look at words without automatically adding up their "values". I can do most words in a couple seconds.