This optical illusion challenge encourages sharpening your observation skills by finding five differences in two images of ...

Readers who choose to enter the latest photo challenge may find themselves up a tree but that may be a good thing because trees are the subject of the assignment. A tree, stand of trees or an entire ...

Optical illusions are images that challenge your perception and test your observation skills. These puzzles help scientists ...

Just like physical exercise strengthens your muscles, mental challenges enhance cognitive functions, improve memory, and sharpen focus. Engaging in picture puzzles activates both hemispheres of ...