Akinateur
This French "génie" knows what you're thinking!  Pick a famous person and through a series of "oui" and "non" questions, the génie will guess who you're thinking about.  He didn't get Danny Kaye (neither would most of you) but he got all the current famous people I could think of, and a number of dead ones.  He can even get fictional characters, but that's a little trickier since some of our fictional characters are different.  (We sometimes read different books and watch different TV shows.)  Anyway, try it out, practice your French and stump the génie!

Akinator, le génie du Web