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Real Psychological Puzzle that will Test your Logical Thinking

Only 10% of Participants gave the Right Answer!

Muhammad Zain Sarwar
Puzzle Sphere
Published in
3 min readMar 21, 2025

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Imagine in front of you there are four cards placed on a desk. Each card has a number on one side and a color on the other. The visible faces of the cards show the following:

  • 3
  • 8
  • Red
  • Brown

You are given a rule to verify:

“Every card that shows an even number on one side, then the opposite side must be red.”

Puzzle Statement

Your task is to determine which cards you must flip over to check whether this rule is being followed or not.

This question was part of a real psychological experiment.

Think Before You Scroll!

Drop your answer in the comments, and let’s see who can crack it!

Scroll down when you are ready for the solution!

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Muhammad Zain Sarwar
Muhammad Zain Sarwar

Written by Muhammad Zain Sarwar

Editor at Puzzle Sphere. From black holes to quantum mechanics, I'm a Theoretical Physicist who wants to explore the mysteries that define our existence.

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