This Math Puzzle Looks Easy—But Can You Find the Correct Answer?

Number-pattern puzzles are often tricky because they appear simple but hide unusual rules. Instead of straightforward arithmetic, each line may depend on a different relationship, making multiple interpretations possible.

A common example is the sequence: 1 + 4 = 5, 2 + 5 = 12, 3 + 6 = 21, and 5 + 8 = ?. At first glance, it looks like normal addition,continue reading …