3 + 6 = 21. Do the same: add the sum (9) to the previous result (12), and you get 21.
Now for the final equation:
5 + 8 =?
Using the same trick: add the sum (13) to the previous result (21).
The answer: 34.
So why do 97% of people fail? It’s because our brains are used to standard math. We overlook other patterns. This riddle demands out-of-the-box thinking, testing our cognitive flexibility.
Solving riddles like this has perks:
Sharper Problem-Solving: Riddles make you think creatively and from all angles.
Better Memory and Focus: Regular riddle-solving boosts cognitive skills, keeps you sharp.
Mental Agility: Finding patterns in crazy sequences keeps your mind on its toes.