They did one last year but the new one is now doing the rounds
http://www.lookforlonger.com/For those who don't know, you have to guess the names of 100 tube/DLR stations from the pictorial cryptic clues. Would have thought with the amount of people on here who love a pun it might be of interest! Some of them are a bit of a stretch, admittedly.
I'm stuck on 97, so thought I'd let some of you suffer before my eyes melt.