A new brain teaser has surfaced on X, and it’s leaving many users stumped. It looks simple, but the answer isn’t as straightforward as you might think.

Here’s how it goes:

6 = 12
5 = 15
4 = 16
8 = ?

The post was shared by GeometryPuzzles, and since then, hundreds of users have jumped into the comments to figure out the pattern. Some suggest it’s just basic logic, while others believe there’s a hidden trick at play. But one thing’s clear — people are hooked.

This isn’t the first time a puzzle like this has gone viral. These short math riddles are a regular feature on social media, and they often spark lively debates. Why? Because they invite quick thinking, challenge your assumptions, and offer that satisfying “aha!” moment when you finally crack the code.

GeometryPuzzles also shared another teaser that sparked just as much curiosity:

2, 4, 6, ?, 8, 10

At first glance, it seems like a straightforward number sequence, but that missing spot has inspired a variety of interpretations. People in the comments have been sharing their answers along with explanations, and some even posted diagrams to show how they arrived at their conclusions. It's puzzles like these that keep everyone intrigued, wondering if there's a trick hiding in plain sight.

Why the internet can’t get enough of brain teasers?

There’s something about math brain teasers that keeps the internet coming back for more. Perhaps it’s the thrill of solving what seems unsolvable or the satisfaction of cracking a pattern before anyone else. These teasers not only stimulate critical thinking but also provide a fun distraction from the everyday scroll.

What makes them even more addictive is the lively debate that often follows. Social media comments explode with users passionately defending their theories, each claiming their solution is the right one. It’s like a mental showdown—where the real puzzle becomes figuring out who has cracked it and who’s still missing the point.

So, have you figured it out yet? The answer might be simpler than you expect!