Spot the Hidden 98 Among the Zig-Zag Random Numbers in this Visual Brain Teaser: The above image is a visual brain teaser, ...

Are you ready to test your observation skills today? Optical illusions and "find the hidden object" puzzles are more than ...

Brain teasers are short puzzles designed in such a way that they encourage logical thinking. These puzzles surely appear very simple at first but they have many twists. There are many types of brain ...

"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 ...

Finding the hidden number in this zigzag optical illusion in under 21 seconds is a sign of above average vision. Take the test and find out what your eyes are capable of.

The visuo-spatial puzzle at right is trickier than it looks, designer Scott Kim warns: "The answers are right in front of you, but they're easy to overlook." Test your skills, following along for ...