Brain teasers come in many forms—some test mathematical skills, some focus on age-related puzzles, and others simply leave ...

ONLY the most eagle-eyed will be able to spot the five hidden bunnies in this devilishly difficult brainteaser. Put your vision to the test with this tricky optical illusion, which will have ...

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 ...