If you’re a fan of such puzzles, here’s a fresh one that has been making waves on social media. (Also read: Be internet's optical illusion master: Can you spot the hidden bee in this mind-bending ...

Why do some crowds move in an orderly fashion while others devolve into a chaotic jumble? New research led by an MIT ...

Accept anybody from the top 15 percent of potential matches, and your chances climb even higher. Then, you need only reject the first 19 percent who come along – and you can expect a nearly ...