• Source:JND
Add as a preferred

Math brain teasers are an excellent means of checking your logical thinking and identifying patterns in plain sight. This puzzle will challenge you to solve a seemingly simple equation series—but with a sneaky twist. If you love number games and identifying uncommon logic patterns, this one's for you!

Solving math puzzles like this doesn’t just boost your problem-solving abilities—it also enhances mental agility, improves focus, and gives your brain a fun workout. Whether you’re a student, a working professional, or just a curious puzzle lover, these challenges are a fantastic way to stay sharp.

In this brain teaser, you’re presented with a series of equations that don’t follow the traditional rules of addition. The key is to uncover the underlying logic connecting the numbers. Once you identify the pattern, the missing answer will reveal itself. Ready to give it a try? Let’s dive in!
The equations appear to be a straightforward addition at first sight. However, if you simply add the numbers together, you'll find something doesn't quite add up literally! So what is the trick?

The Viral Puzzle Reads:

5 + 5 = 15
6 + 6 = 18
7 + 7 = 21
8 + 8 = 24
9 + 9 = ??

If you’re thinking this follows standard addition, you’ll soon realise it doesn’t. So, what’s going on here? Let’s break it down:

• 5 + 5 = 10, but the answer given is 15
• 6 + 6 = 12, but it says 18
• 7 + 7 = 14, shown as 21
• 8 + 8 = 16, but the result is 24

Hint: 

Consider the left side of both equations. Look for a pattern among the two numbers and the final answer. You may want to consider thinking in terms of multiplication instead of straight addition.

Solution Explained: Time To Find The Twist

What’s the pattern? Notice that in each case, the actual sum is increased by 5, 6, 7, and 8, respectively:

Number + Number = (Number × 2) + 5

• 5 + 5 = (5 × 2) + 5 = 10 + 5 = 15
• 6 + 6 = (6 × 2) + 6 = 12 + 6 = 18
• 7 + 7 = (7 × 2) + 7 = 14 + 7 = 21
• 8 + 8 = (8 × 2) + 8 = 16 + 8 = 24

Following the same logic:

9 + 9 = (9 × 2) + 9 = 18 + 9 = 27

The final Answer is 27

If you answered 27, well done! You have a keen eye for recognizing concealed patterns. Brain teasers such as this are not merely entertaining; such teasers require us to think outside of the box and challenge our capacity to observe beyond what is apparent. Solve more puzzles to keep your brain in tip-top condition, and keep in mind: it is not necessarily about mathematical ability it is sometimes about considering the inconspicuous.
Share it with your friends and see how many of them can crack it without hints!

Also In News