If you love number puzzles this is a must have app. The puzzle are made by Andrew Stuart he is the best at generating any type of number puzzle. A must have simply because the actual puzzles are put together from the best puzzles we have been providing to newspapers. You get 5 puzzles to mast in this package.
http://itunes.apple.com/us/app/5-daily-puzzles/id525760974?mt=8
http://itunes.apple.com/us/app/5-daily-puzzles/id525760974?mt=8