Fateful creative solution

One unfortunate merchant owed a large sum of money to a moneylender. The old, ugly moneylender proposed that he would forget the debt if...

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...

Measuring Water puzzle

You had an infinite supply of water and a 3 and a 5 - liter bottles You would to measure exactly 4 liters of water. How...

Vigilant woman – a detective story

A woman is sitting in her hotel room when there is a knock at the door. She opened the door to see a man...

Do the Opposite. How to get a good shot.

A duke was hunting in the forest with his men-at-arms and servants when he came across a tree. Upon it, archery targets were painted...

Brilliant Simplicity – Example of Creative Problem Solving

One Major Research Institute has been tasked to measure the temperature of weevil, a pest beetle. Long-term investigations and the use of expensive equipment were...

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...

Convert Harm Into Benefit – Timur’s decision

Turco-Mongol commander and conqueror Timur (Tamerlane, 1336-1405), invaded northern India, attacking the Delhi Sultanate. The battle between  Turco-Mongol conqueror and Indian forces took place in 1398. ...

Smart policemans

A homicide team enters a crime scene where a dead body of a fat old man lies there on the floor with blood oozing...

Inventive General: Unraveling Story that Requires a Creative Solution

During a momentous battle, a Japanese general decided to attack even though his army was greatly outnumbered. He was confident they would win, but...

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...

The Candle Problem by Karl Duncker, 1945

You are in a room with a table pushed against the wall. On it is a box of thumbtacks, matches, and a candle. You must fix...