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The puzzle of areas V

In this Naoki Inaba puzzle a series of geometric shapes appear and we have to find out the missing dimension without using fractions or decimal values ​​in the results, simply using the logic and the known formulas for calculating areas of rectangles. Obviously we can not make measurements with rule.
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How to be happy in 10 steps

Video about happiness Happiness is really what we all seek to achieve in our lives. It is like a goal or purpose that we want to achieve, each in its own way, choosing one way or another, although not all of these paths are successful ... And it is that as someone said, “Happiness is not at the end of the road, but throughout it ”Do not forget to subscribe to our YouTube channel of Psychology and Education
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Behaviors that are confused with depression

Video about behaviors that are confused with depression Trying to identify the differences between depressed mood and normal temperament can be a very big challenge, especially for family and friends. It is important to know the symptoms of depression so that we know how to decipher what a clinical depression may or may not be.
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Accounts do not come out

Three children enter a store to buy 3 bags of candy. each bag costs 5 euros and each of them paid with a 5 euros ticket. As they were good customers, the shopkeeper gave them a small discount: he returned 5 coins of 1 euro. The boys found that 5 euros are wrong to distribute between 3 so they stayed one for each and the remaining two gave them as a tip.
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Parallel lines

Stare at the two lines ... do you think they are parallel lines? Solution Look carefully before answering, because perhaps the view deceives us again. These are two perfectly parallel horizontal lines.
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