The human visual cortex is one of the most intricate and fascinating systems in the world. It allows our eyes to capture light and transform it into electrical signals, which forms the vivid ...

A tricky brainteaser is challenging netizens to find three hidden cats in a festive scene - but one is hard to spot as it's concealed within the branches of a Christmas tree ...

Brain teasers are a fantastic way to test cognitive skills while adding a bit of fun to your free time ... challenging users to spot a hidden animal within a maze of branches.