Flex your math muscles with this weekend’s brain teaser. Play now ...

The math world is losing its mind over the new solution to an Erdős problem. This is what AI found, how we missed it—and why ...

Here is the setup defining her January 2027 retirement date: a 61-year-old single woman with $1.6 million spread across a ...

Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. Khadija Khartit is a strategy, investment, and funding expert, and ...

People often solve simple arithmetic problems, such as basic addition, subtraction, multiplication or division, in their minds. The precise mental processes they rely on to solve these problems, ...

For more than 20 years — and after working with more than 10,000 participants who attended my Kaizen workshops — I’ve refined a simple yet powerful tool that makes problem-solving useful for everyone.

You’re at the checkout screen after an online shopping spree, ready to enter your credit card number. You type it in and instantly see a red error message ...

Hey Super Math Kids! Do you want to impress your friends and teachers with your amazing math skills? Imagine solving tricky multiplication problems in your head, without even needing a pencil or paper ...

Challenge your mind with this optical illusion puzzle that tests your observation and problem-solving skills. The image contains overlapping triangles, requiring careful attention to detail to spot ...

If I asked you to multiply 51,689 by 89,542 without using your phone or calculator, how much time would it take you? Fourteen-year-old Aaryan Shukla can solve this arithmetic in a matter of ...

If at first you don't succeed, stop wasting time and ask for help, says Tory Burch Foundation president Tiffany Dufu. You can solve problems and build relationships faster if you ask people with ...

For many of us, mathematics in school was a subject that not only demanded endless practice but also caused anxiety before exams. However, when it comes to brain teasers, the experience is quite ...