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Brain food
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Brain food

Content 1 The needs of our brain 2 Saturated fats 3 Fruits and vegetables 4 Wine 5 Fish 6 Carbohydrates 7 Green tea The needs of our brain Our brain has an extremely complex functioning, so much so that experts still do not know many of the aspects about it.

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A Chinese word change puzzle

Here is an interesting puzzle conceived in the same vein as my old game 14-15. It is assumed that there is a letter in each of the twelve moving blocks, and that if read from top to bottom you will find a correct word. The problem is to slide the blocks in the other groove so that the same word can be read correctly from left to right.
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Clay Kids: education with values ​​for preadolescent audiences

Today we want to present a new animation series with an educational background to promote the values ​​of equality, solidarity, teamwork, positive thinking, etc. focused on the pre-adolescent public between 8 and 12 years old. Clay Kids is an animated series consisting of 52 episodes of 11 minutes each, which tells the adventures of seven children very different from each other, who are joined by a healthy sense of irreverent humor and wisdom born in their urban adventures.
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Sander's illusion

Look at the parallelogram below. It is divided into two parallelograms of different sizes, each of which is crossed by a diagonal line painted dark blue. Of those two diagonal lines, which is the longest? The one of the small parallelogram on the right or the one of the larger parallelogram on the left?
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The correct communication in the couple

One of the most reliable indicators that things are going well in a relationship is communication. Within this we find two broad branches of the same tree that consists of the verbal, what we say or stop saying and the nonverbal, based on gestures, looks, complicity, etc ... It usually happens that at the beginning of relationships communication usually be fluent, moderate, restrained and therefore comes to provide satisfaction to the two members of the couple.
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The domino points

Surely you have played many domino games, so the following question should be easy to answer: How many points does a complete domino game have? Solution The sum of all points is equal to 168. We have 7 chips of each type (white, 1, 2, 3, 4, 5 and 6) and we know that one of the chips is double so we have 8 repetitions of each number of points, that is: 8 * 6 + 8 * 5 + 8 * 4 + 8 * 3 + 8 * 2 + 8 * 1 + 8 * 0 = 168
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The triangular football

The boys of my school formed three teams to play a triangular football tournament in which each team faced only once against the other teams. As usual, two points were awarded to the winner of the match, one in case of a tie and zero to the loser. There was the curious circumstance that each team scored a single goal throughout the tournament and yet the classification was as follows: The red team scored 3 points, the green team 2 and the blue team 1.
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Rate (se)

"I am a little depressed and I have low self-esteem." We've all heard this phrase or similar at some time, right? This entry is not about "being depressed", a term that is too widespread in our society and that in most cases is not used properly, but about the second part of the sentence, because ... what is really self-esteem?
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The coin collector

A collector has a certain amount of coins, all of different weights. If you remove the 3 heaviest coins, the total weight of all the coins you had decreases by 35%. If you remove the lightest 3 of the remaining coins, the total weight of these remaining coins decreases by 5/13. How many coins did the collector originally have?
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Birth control

In order to reduce the growth rate of its population, the Chinese government promoted a policy known as "a couple, a child." If successful, a situation of one-child families would be reached. So there would be no brothers, for example. What other four kinships would also cease to exist?
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Mars channels

Here is a map of the recently discovered cities and canals of our nearest neighboring planet, Mars. Start in the city marked with an N, at the south pole, and see if you can spell a complete sentence by touring all the cities, visiting them only once and returning to the starting point.
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Shirts and cats

Pedro and Laura are at the exit of the school. Laura tells Pedro: - What a beautiful shirt you wear, Pedro! "Well, look," he replies, "all the shirts I have are white except two; all are blue minus two and all striped minus two. Let's see if you know how many shirts I have of each class?
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Klondine return

Euler, the great mathematician, discovered a rule to solve all kinds of labyrinthine riddles that, as all good fans know, consists of working backwards, that is, from the end to the beginning. The riddle we present here, however, was deliberately conceived to disqualify Euler's rule and among many other attempts he may be the only one who questions his method.
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The patchwork quilt puzzle

The girls have embroidered all their names in a beautiful puzzle in the form of patchwork (patchwork quilt) that they will present to their teacher. Starting in any square and moving frame by frame in any direction, check how many names you can discover. Starting with the letter N, for example, as shown by the lines, can you spell NANCY but only when you find all the remaining ones will you know how many students went to this Puzzlelandia school.
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The Guido mosaics

It is generally not known that the celebrated piece of Venetian mosaics from Domenichio, known as the Guido collection of Roman heads, was originally divided into two square groups, discovered in different periods. They were assembled to recover what is supposed to be its correct form, in 1671.
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The merchant of Baghdad

A merchant from Baghdad who met the needs of the pilgrims who crossed the desert had to face on one occasion the intriguing problem that we detail below. He was visited by the guide of a caravan that wished to acquire a supply of wine and water. Presenting three ten-gallon containers of wine, he asked the merchant for 3 gallons of wine in the first container, three gallons of water in the second and three of wine and three of water mixed in the third, and he also asked for three gallons of water to each of its thirteen camels.
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Siam's fighting fish

The inhabitants of Siam are born players who would bet their clothes on any bet that offered a chance of winning or losing. They are not belligerent but love to witness a fight among other creatures, from toads to elephants. Dog fights or cockfights are a daily occurrence and are carried out following the common trends of civilized countries ... but nowhere else on earth is it possible to see a fight between fish!
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The Bookstore

Aniceto is addicted to riddle books and puzzle games. Every day he passes by the bookstore in his neighborhood and spends hours gazing at the covers. Today he has been paid weekly and he has not been able to resist the temptation to buy some books. Half of the pay money has been spent and on leaving he has realized that he had as many cents as euros he had when entering but half of the cents he had.
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Before and after

I present you a solitary riddle that became very popular in Europe many years ago. It is a riddle of English origin that was invented by a sailor who spent forty years of his life in Sailor's Snug Harbor, on the island of Staten and who boasted of having sailed with Captain Randall himself, entertaining visitors with this game, with the one who, as he said, took out a little "extra silver."
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Lateral intelligence test

Background Vector created by freepik Despite the simplicity of the test that we propose below, not everyone is able to complete it successfully. Answer the questions in less than 15 seconds, and check your results. If you consider yourself a 'smart guy' who boasts of his general knowledge, try to answer the 5 questions of this test correctly ... At the end of this page you will find the correct answers.
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Extracurricular activities

In my institute they organize five extracurricular activities in the afternoon: Sports, literature, photography, chess and singing. The sport activity is celebrated one day yes and another no; that of literature once every three days; that of photography every four days; the one of chess every five days and the one of song one of every six.
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