Triple Entendre is a riddle and puzzle game for iPhone and iPad. Each level is a combination of text, photos, and other clues that provide hints to the answer or even the question. Most questions are intended to require some research, so there's a built-in browser that makes it easy to switch between the web and the game.
I'm a total sucker for riddles and totally addicted to Triple Entendre. It's extremely challenging and half the time I'm cursing my iPad for my wrong answers, but boy does it feel good to pass a level.
If you're looking for hints on the levels, we've got a thread in our forums dedicated to asking and giving hints for Triple Entendre.