If you love testing your mind then it’s the perfect time of year as the annual GCHQ Christmas quiz has been released. The UK's intelligence, security and cyber agency creates a Christmas Challenge ...

GCHQ, the UK’s intelligence agency, released its annual Christmas card on Wednesday, filled with puzzles and hidden codes. The spy agency's "Chief Puzzler", known as "Colin", said the notoriously ...

If you fancy yourself as a budding spy, GCHQ’s Christmas challenge will put your analytical skills to the test. The UK spy agency, which sets an annual quiz aimed at children aged between 11 and 18, ...

Remember how one of the UK’s intelligence agencies set a fiendishly difficult quiz right before Christmas? Well, now it’s published the answers, so you can stop ...

Fans of codebreaking, maths and brainteasers can now try their hand at the latest cryptic Christmas challenge set by GCHQ, the UK's intelligence agency. GCHQ released its annual Christmas card on ...

If you love testing your mind, then it’s the perfect time of year - the annual GCHQ Christmas quiz and the answers have been released. The UK's intelligence, security and cyber agency creates a ...