Think you’ve got what it takes to solve this tricky math puzzle? Most people get it wrong on their first try!
Give it a shot before scrolling down for the answer. No peeking! 👀

The Puzzle:
12 + 13 = 7
14 + 15 = 11
16 + 17 = 15
20 + 19 = ❓
At first glance, it looks like basic addition—but there’s a hidden pattern!
💡 Can you figure it out?
A
B
C
👇 Ready for the answer? Scroll down! 👇
A
N
S
W
E
R
The secret formula is: (A + B) – 18
Let’s check:
(12 + 13) – 18 = 7
(14 + 15) – 18 = 11
(16 + 17) – 18 = 15
So, for 20 + 19:
(20 + 19) – 18 = 21
🎉 The answer is 21! Did you get it right? Let us know! 😃