Every now and then, a brain teaser comes along that makes you stop, think, and maybe even scratch your head. The image in question presents what seems like a simple arithmetic puzzle, but there’s more than meets the eye. The question has stumped many, leaving 97% of people baffled.
Here’s the puzzle:
1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
5 + 8 = ?
