Please fill in your full name, email address, mailing address and phone number along with your answers to the puzzles you wish to enter. -You can only enter once online for each issue.

The jungles of Siam are hiding all sorts of secrets, and scattered across it is a series of puzzles that might just be the hardest in the entire game. When you first find the hidden pyramid as par ...

Please fill in your full name, email address, mailing address and phone number along with your answers to the puzzles you wish to enter. -You can only enter once online for each issue.

For aspiring spies, it's a secret mission with an unseasonal twist. GCHQ has released its annual fiendish Christmas puzzle to test the James Bonds of tomorrow. But unusually on a Christmas card ...

The latest instalment in the agency's annual puzzle series has immediately wracked brains after it was presented in its usual Christmas card format this morning. Challengers have been presented ...

The seven puzzles reveal where real-life spies are spending their Christmases. Well, allegedly (Picture: GCHQ) The above image isn’t the world’s most elaborate Christmas card – it’s ...

This year's puzzle challenges the public to decode the names of UK landmarks, testing skills including codebreaking, maths and lateral thinking. The deceptively tricky tasks require ingenuity and ...