Logical problems from an old physicist’s notebook to think progressively

Unlike the monotonous and boring examples from the school textbook, tasks on logic are interesting for both adults and children. They do not require knowledge of the program, they are equally suitable for technicians and humanities. What is the joy of finding the answer yourself? Already intrigued? Well, let's do it! We hope that the solution of logical problems from our collection will be a pleasant addition to your leisure.



Solving logical problems

1. What are the names of hamsters?
   Mom bought Larissa hamsters of different colors: black, red and spotted. The girl named them Corner, Red and Spot. But the color of the hamsters and their names do not match! What are the names of hamsters, if the darkest of them is Spot?
   
   
   
   (a) Coal, Red, Spot;
   (b) Spot, Corner, Redhead;
   (c) Spot, Red, Corner.
   
   
2. Choose the right figure
   Which of the four figures will continue the series?
   
   
   
   a) 1
   (b) 2
   (c) 3
   (g) 4
   
   
3. At what price is strawberry?
   The table shows the total value of fruits vertically and horizontally. Find the price of strawberries.
   
   
   
   4
   (b) 3
   (c) 2
   (g) 1
   
   
4. Where's whose doll
   Four friends were given new dolls. Nastya and Oksana have dolls with blue hair, and Lena and Masha have blond hair. Oksana and Masha have dolls in dresses, and Nastya and Lena have dolls in skirts and blouses. Identify whose doll is.
   
   
   
   (a) Nastya, Oksana, Masha, Lena
   (b) Masha, Oksana, Lena, Nastya
   (c) Lena, Oksana, Masha, Nastya
   
   
5. Tannins outfits
   Tanya has 4 dresses and 3 pairs of shoes. She goes to a party and chooses what to wear. How many options does Tanya have?
   
   
   
   (7)
   (b) 9
   (c) 12
   (g) 15
   
   
6. Rotate the gears.
   The colorful gears in the figure are connected by teeth. If you turn green, the red will turn. Who will the tiger meet?
   
   
   
   (a) a dog;
   (b) frog;
   (c) a parrot;
   d) mouse.
   
   
7. Vrunish and Pravdish
   Truth is always telling the truth, and his brother Vrunish is not telling the truth. The boys are looking at the same pyramid. But Pravdish is on the side and Vrunish is on top. Pravdish says the lower ring is red. Vrunish says he can see all the rings. What pyramid are they looking at?
   
   
   
   a) 1
   (b) 2
   (c) 3
   (g) 4
   
   

Answers.

1. So, the darkest (black) hamster is the Spot. So there's red and spotty. But the colors don't match. Therefore, the redhead was called Ugolek, and the spotted Redhead. The right answer is variant.
2. The cutout in the circles shifts clockwise, so it will be correct. variant.
3. First we find the price of an orange: 15: 3 = 5. From here, the kiwi price is 3. And the price of a peach is 2. It remains to find the price of strawberries: 8 - 5 - 2 = 1st. The correct answer would be variant.
4. Option "b"Masha, Oksana, Lena, Nastya.
5. Tanya has 12 options (sic)variant).
6. The tiger will meet the frog.variant).
7. Pravdish says the lower ring is red. We are talking about pyramids No. 1 or No. 3. But Vrunish looks up and says he sees all the rings. Because he lies all the time, he doesn't see them. Pyramid sought No. 3.

These are some interesting logical problems. The answer to them will not be calculated, much less remembered. After all, to solve it is necessary to think creatively and analytically, using both hemispheres of the brain. In everyday life, we don’t have to do that very often.