Every year, GCHQ also publishes a special festive challenge for 11 to 18-year-olds. It comprises a downloadable PDF with ...

WITH Christmas just around the corner many of us are getting into the festive spirit. Whether it’s settling down to watch ...

There are different types of brain teasers that make you use your reasoning ... reads the puzzle. The answer is simpler than ...

GCHQ’s Christmas puzzle contains hidden clues as an extra challenge for sleuths for the first time. The intelligence security ...

Riddles and brain teasers are such brain-boosting activities ... But as with many great riddles, the answer is simple yet ...