
This intriguing math puzzle is challenging social media users to find the missing value in a segmented circle of numbers. At first glance, the sequence—80, 4, 20, 5, 16, 8, and 1—might seem random, but a closer look reveals a clever pattern of multiplication between opposite segments. Whether you are a math enthusiast or just looking for a quick mental workout, this viral teaser serves as a fun reminder that keeping the mind active with daily logic puzzles is a great way to sharpen your cognitive skills.
To find the missing number (?), you simply need to look at the relationship between the numbers positioned directly across from each other. The logic follows a consistent multiplication rule where the product of the two opposite numbers always equals 80:
20 × 4 = 80
16 × 5 = 80
80 × 1 = 80
Following this pattern, the missing number is 10, because 8 × 10 = 80.






