These lateral-thinking puzzles require some serious out-of-the-box thinking to solve. Are you up to the challenge?

Physicist Albert Einstein famously posited that if he only had an hour to crack a daunting problem, he'd devote 55 minutes to ...

Others have experimented with a modified rubber duck that, when the user presses a button, nods or offers brief, neutral replies to your explanations. The interactivity, the researchers argue, might ...