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650 fun brain teasers

At leisure / funny puzzles

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Random fun puzzle

 Random funny trick question:

From which American city can a suit be made?

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A and b were sitting on the pipe, a - fell, b - gone. What's left on the pipe?

Antelope, kangaroo, flea competed in the high jump. The kangaroo jumped 2 meters, the antelope jumped 3 meters, and the flea only half a meter. Who has won?

Is watermelon a fruit or a vegetable?

Baba is about forty years old, but he jumps like a fool. Give the correct answer - who is she?

Grandmother carried 100 eggs in a basket. One fell. How many eggs are left?

The jar is on the table. It stands in such a way that one half of it is in the air and the other is on the table. What is in the jar if it falls in half an hour? And why?

Without which letter do airy cake exist?

Lives without drinking. But it is necessary to drink - dies.

What can't you build a house without?

What can't you bake bread without?

Big, black, 8 legs, running around the ceiling sniffing light bulbs?

One man had a wolf, a goat and a cabbage. And he had to cross the river in a small boat and carry them with him one at a time: either a wolf, or a goat, or a cabbage. If he transports a wolf to the other side, then the goat will eat cabbage at that time. If he transports a goat, and then a wolf, the wolf will eat the goat. How will he transport them?

There were two fathers and two sons. And only three apples. But everyone ate an apple. How is this possible?

The 12-storey building has an elevator. Only 2 people live on the ground floor, from floor to floor the number of residents doubles. Which button in the elevator of this house is pressed more often than others?

In the eyes of bewilderment, under the armpits porcelain

Which forests do not have game?

At what time does the moon weigh more?

Where did a husband not kiss his wife before marriage?

What type of weapon has a number and a year?

In what year and century did the Greeks grind flour?

In what year do people eat more than usual?

In which city you can not shoot?

In what city do sheaves dry?

Which city is bleeding?

Where in the world can you see the sunrise twice a day?

What month do people eat the least?

What weapon has a number and a whole century?

What is the order of this series of numbers? 8 2 9 0 1 5 7 3 4 6

What five-letter word has five O's in it?

Which word has 100 consonants?

Which word has 3 L's and XNUMX P's?

Which word has 7 O's?

Which word has five "L"s?

Which word has three "J"s?

In what case will 10 adults and 10 children, climbing under one umbrella, not get wet?

In which case is the equality 18 + 18 = 12 true?

When is the number 1322 less than 622?

In what case will six children, two dogs, four adults, climbing under one umbrella, not get wet?

What number has as many digits as letters?

How many digits are equal to the number of letters in its name?

There are 4 corners in the room, in each corner there is one cat, in front of each cat there are three cats, on the tail of each cat there is one cat. How many cats are in the room?

There were 12 chickens, 3 rabbits, 5 puppies, 2 cats, 1 rooster and 2 hens in the room. The owner entered the room with a dog. How many legs are in the room?

There were 50 candles burning in the room, 20 of them were blown out. How much will be left?

She is not found in the forest, she is alone in the river, she does not fit in a barn, and there are two of them in her wallet!

There were three people on the boat. The boat capsized, but only two got their hair wet. Why?

Which city has the name of one boy and the name of a hundred girls?

Which drink has two animals in its name?

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Latest news of science and technology, new electronics:

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Random news from the Archive

quantum integrated circuit 30.06.2022

Australian developers reported significant progress in the development of quantum computers. Based on almost 20 years of scientific work by Australian teams, a young company from Australia - Silicon Quantum Computing (SQC) - was able to create the world's first quantum integrated circuit. The chip is able to simulate the behavior of just one molecule - polyacetylene, but it does it much better than classical computers.

Designed and manufactured in Sydney, SQC's Quantum Processor is an analog solution for simulating the quantum states of molecules. The company still only dreams of a real quantum processor with the ability to correct errors. But even the molecular simulator promises a breakthrough for the field once such chips are commercially produced.

A quantum chemical compound simulator will help you discover unusual materials and substances for pharmaceuticals and industry. Now we cannot even imagine what properties these materials will have, because such calculations are either impossible on a conventional computer, or will take years, centuries, and even longer as the connections become more complex.

The creation of the first SQC quantum integrated circuit required the implementation of three separate technologies. First, it was necessary to create elements of atomic size so small that their energy levels would equalize, and electrons could easily pass through them. Secondly, it was necessary to implement the possibility of adjusting the energy levels of each element separately, as well as all elements together, in order to control the passage of quantum information.

Finally, it was important to learn how to control the distance between the elements with an accuracy of less than a nanometer, so that the elements remained close enough to each other, but this would not interfere with the quantum coherent transfer of electrons along the chain. All three technological tasks were successfully solved and, as the developers emphasize, this happened two years ahead of schedule.

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