" width="1200" height="675" /> Brain teasers and IQ tests are great ways to challenge your critical thinking, observation ...

" width="1200" height="675" /> Brain teaser puzzles are a great medium to test the reader's critical thinking and ...

Reveal the inner parts of your personality with this strange optical illusion. The 'literal optical illusion' of a tree line ...

Do you have the mental sharpness to spot the smallest of mistakes? Are you among the top few who can solve this in record ...

Test your IQ with this fun picture puzzle! Can you count the number of matches in under 5 seconds? Only 1% can solve this ...

Brainteasers are a fantastic way to keep your brain engaged and hone your attention to detail as they force you to perceive ...

THE seek-and-find puzzle will have you scratching your head wondering where the hidden key is – but only those with 20/20 vision will be able to solve it. Everyone can see the boxes but only ...

Human sniffs last between one and three seconds. During that time, chemicals enter the nose and allow us to perceive the smells around us. But whether humans can perceive odor changes shorter than the ...

Did you know you can reset your sleep cycle with morning light? Here's how getting some sunshine helped me sleep.

Neuroplasticity is the ability of your brain to make new neural pathways, and change the ones that already exist, in response ...

A woman who was diagnosed with a brain tumour after a routine eye test is encouraging people to go for regular check ups.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The brain is your body’s ...