The logic puzzle has simple rules, and is easy to learn. Watch Party Newsletter DIY projects to try Avoid inflammation 🥣 Is Pilates for you? U.S. Politics Sports Entertainment Life Money Travel ...

If you're the second type, then you might just be a math legend. There's a new viral math brain teaser that’s testing how fast people can solve a logic-based equation—and it’s got the internet talking ...

Only a maths genius can solve this tricky puzzle in just 20 seconds ... It appears to be a simple equation, straightforward addition, subtraction and multiplication that we learn at a young age.

People default to addition when solving puzzles and problems, even when subtraction works better. That could underlie some modern-day excesses.