Nature photographer Mohan Thomas took a photo of two leopards, but the small cub is hard to spot. C…

Insider rounded up 23 riddles and brainteasers with simple answers that anyone could get wrong.Some…

The incline of the stairs is an illusion - the two "legs" of the staircase are actually the same le…

Hungarian artist Gergely Dudás creates mind-boggling puzzles containing hidden objects or details, …

In artist Gergely Dudas' latest challenge there's one noseless jack-o'-lantern hidden in the drawin…

In his latest brain teaser, Gergely Dudás shared an image of tightly packed jack-o'-lanterns with a…

Artist Gergely Dudás creates brain-teasing puzzles with hidden images.

Camouflage is a crucial survival tactic for many animals, including those that live underwater. The…

There's a goldfish hiding among clownfish somewhere in this coral reef. Can you spot the one small …

We ask a pilot and an architect to try answering a notorious brain teaser from Google's job intervi…

Tech companies like Google and Facebook have had a history of asking impossible questions during jo…

Despite his squeaky clean image and nerdy persona, insiders say Bill Gates pursued extramarital rel…

An in-depth look at the grief, perseverance, and scandal that have shaped the incoming president's …

We've republished three of the puzzles below. Have a go at each one, and when you think you've got …

"Intelligence. It's the ability to think abstractly. Challenge the unknown. Solve the impossible. N…

Knotel has strings attached to $400 million it said it raised from Wafra. Now landlords are suing o…

"Everyone likes to ask case questions and brain-teasers. It turns out our data shows that doesn't a…

We went through Glassdoor to find some of the trickiest brain teaser questions they get asked, and …

Think you have the mental chops to pull off these brain-twisting matchstick puzzles?Give it a shot,…