GCHQ has revealed its Christmas puzzle which includes cryptic clues and a ‘hidden’ message. The annual festive brainteaser is used to persuade children and adults to think about a ...

Get Ready for your Visual Illusion challenge! This hidden Santa visual puzzle challenges even the sharpest minds. See if you're among the elite 1% who can find him in just 10 seconds. A fun brain ...

Government Communications Headquarters (GCHQ) has released a brain-teaser Christmas card ... three extra elements hidden within the card. It features seven puzzles and can be solved by teenagers ...

In this Christmas-themed brain teaser puzzle challenge, the readers are asked to spot a hidden elf in the pine forest. The time limit for completing the challenge successfully is 5 seconds.