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Can You Answer This Riddle?

A Tough Math Riddle Brain Teaser

Can you figure out the pattern to find out which number replaces the question mark? If ... 33 x 15 = 1842 x 9 = 1812 x 4 = 1256 x 3 = 15 Then 71 x 2 = ?

Then 71 x 2 = 7! After performing the multiplication, we reach the result by adding the individual numbers that make up the result. If 33 x 15 = 495, then 4 + 9 + 5 = 18 and so on!
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© 2026, Quincy Bioscience, LLC. | All rights reserved. Prevagen is a registered trademark and product of Quincy Bioscience, LLC.| Disclaimer: This site is for informational purposes and not medical advice.
† Based on NielsenIQ Total USxAOC, 52wk data ending 5/25/26.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.