Presse Santé

Only geniuses can crack this puzzle!

A Puzzle posted on Facebook, with a particularly simple statement, specifies that only one person out of 5000 manages to find the solution. Simple to understand at first glance but maybe not as easy to solve as it looks. Will you be that person?

Logic is an essential quality to develop for greater ease in the professional world or simply to solve the small problems of everyday life. Because very often, we remain entangled in difficulties because we do not know how to approach the problem, where to start, what steps to take next to finally find a “logical” solution to our embarrassment.

The logical mind is built from childhood to adulthood

Logic is built little by little, stage by stage, from the face to adulthood. Specifically, in a final stage of cognitive development, children learn sophisticated rules of logic. They then use these rules to understand how abstract concepts work and to solve problems. The child, then the adult, can analyze his environment and make deductions. He can create theories about what is possible and what might happen in the future, based on his existing knowledge.

This is called hypothetico-deductive reasoning. This is an essential part of the stage of acquiring logical thinking that will follow us throughout our lives. It allows a person to consider “What if?” », « if I approached the problem in a different way, would the solution be simpler? », « what is behind the appearances? and if it was more complicated than what I perceive at first sight? What are the data that I have with certainty that can allow me to build a fair reasoning and bring out the answer? A person with this skill can imagine several potential solutions and outcomes in a given situation.


In the logical stage, one can imagine many ways to solve the same problem and then choose the best option based on its logic or success.

For example, if you are going to create a model of the solar system using materials that are available at home, you can use them in several ways. Thinking of several possibilities and then using the one that is most logical or efficient shows that one has hypothetical-deductive reasoning skills. This skill is acquired in late childhood and early adolescence, and then it will serve us throughout our lives.

One can also examine and evaluate one’s own thoughts and actions. For example, if you are arguing with a friend, you can consider how the opinions or behaviors may have contributed to the situation. You can then decide how to approach the situation.

At first glance, the puzzle seems simple:

If 11 × 11 = 4, and 22 × 22 = 16, then what is 33 × 33 =? People are engaged in heated debate over the real answer, so before you read the next page, try to figure it out yourself. What do you think is the answer?

* Presse Santé strives to transmit health knowledge in a language accessible to all. In NO CASE, the information given can not replace the opinion of a health professional.

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