Snakebite

On an exotic island you were bitten by a venomous snake. Fortunately, in the nearest settlement there was a doctor. He examined the wound and...
Gauss. German mathematician

The Story of Young Gauss

In the lesson of arithmetic, the teacher, who decided to do his own business, asked the students to compute the sum of all the...

The school inspection

A school teacher knew that the school superintendent would visit the next day. The superintendent would ask questions such as spellings or mental...
Power of life

Water Crossing By Rope

The deep round lake is 200 meters in diameter. In the middle of the lake there is an island where a tree grows. There...

Party detective story

A man walks into a party and pours some punch and ice into a cup. He was really thirsty and drank it really fast. Then...
Cheops pyramid height 139 m

Measuring the Great Pyramid

While the famous Greek philosopher Thales of Miletus was in Egypt, he was asked to find out the height of the Great Cheops pyramid. How could...

The Importance of a Good Problem Statement

A metal rod stirred the liquid molten metal. However, at the same time it was collapsing and polluting the metal. The solution to the problem...

How many 9 comes..?

In the city, a new district with 100 houses was constructed. Experts that produce nameplates, manufactured and brought a pack of new ones with the...
Riddle of the Sphinx. Answer

The riddle of The Sphinx

The Sphinx lurked outside Thebes in ancient Greece, and demanded passers by answer a riddle: 'Which creature in the morning goes on four legs,...
Ошибка выжившего. Творческое решение проблем

Survivorship bias and the flip side of things

During World War II, the Hungarian mathematician Abraham Wald, who worked in the SRG laboratory in New York, considered how to minimize bomber losses...
Лепрекон. Жан-Батист Монж (Jean Baptiste Monge)

The Field of Boliauns – Creative Problem Solving

One fine day in harvest, Tom Fitzpatrick went strolling along the sunny side of a hedge. All of a sudden he heard a clacking noise...

Sarah Bernardth creative solution

The great French actress Sarah Bernhardt, at the height of her fame, has found a rival in the person of one young actress, who...