If you are a Sudoku ace or a cryptic crossword champ, you might feel like there is no puzzle you couldn't crack. But there are some hidden messages which have baffled even the brainiest code breakers.

A secret code hidden inside a century-old vintage silk dress that had eluded cryptographers for a decade has finally been cracked, throwing some light on the identity of the woman who owned the attire ...

It is one of the world's most famous unsolved codes whose answer could sell for a fortune -- but two US friends say they have already found the secret hidden by "Kryptos." ...

Washington (AFP) – It is one of the world's most famous unsolved codes whose answer could sell for a fortune -- but two US friends say they have already found the secret hidden by "Kryptos." The ...