If you’re like me, you probably haven’t tackled a tricky math problem since high school. While I’ve never been a fan of numbers, I do enjoy solving the occasional brain teaser online. And I’m not alone—many people love the challenge of spotting patterns and cracking tough problems.
One such puzzle has been baffling the internet:
1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
5 + 8 = ?
The fascinating part? There isn’t just one right answer! Different approaches yield multiple solutions, such as 45, 34, 32, 111, or even 1101, depending on the method used—whether it’s pattern recognition, recursion, or number bases.
Did you try solving it? What answer did you get? Let us know in the comments!