Add Yahoo as a preferred source to see more of our stories on Google. A new brain cancer test using spinal fluid detects tumors with 100% accuracy, offering safer diagnosis and fewer risky biopsies.

Add Yahoo as a preferred source to see more of our stories on Google. Who doesn't love a clever brain teaser puzzle? Also known as rebus puzzles, these visual brain teasers will challenge your wits!

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Researchers at Duke University monitored participants’ brain activity while they completed simple math ...

Welcome to New Scientist‘s devilishly difficult Christmas puzzle, set by Charlie Wheeler at Ultimate Quest. This year, your task is to work your way through the exhibits of a mysterious museum, ...

If you enjoy solving brain teasers that test your logic and observation skills, this tricky tree-cutting puzzle is perfect for you. In today’s challenging puzzles, within 7 Seconds only, I was able to ...

Brain teasers aren’t just fun internet challenges — they’re low-key mental workouts. This kind of puzzle tests more than your eyesight; it stretches your logical reasoning, pattern recognition, and ...