What seemed like a regular grade school math problem had people totally stumped on social media. The equation 9 x 3 - 9 shared by @BholanathDutta on X left social media users completely mystified. So, ...

Every so often its good to exercise your brain with a math problem or two that forces you to recall principles you learned decades prior. Can you solve 5+5x5+5 without a hitch?

Both of those seem high to me, since the sum of the first 10^6 terms of the series is < 137 and the terms get smaller as they progress.

After years of work, there was only one number left below 100 that hadn't been proven to be the sum of three cubes. A million+ hours of worldwide supercomputer time later, even mighty 42 has fallen.

A seemingly simple math problem has gone viral this week, leaving people totally stumped on social media. The equation in questions is: 15 - 15 × 4 ÷ 2 = ? At first glance, it looks like a basic grade ...