The mystery of the elevator

On his way to work each morning, a man living on the fifteenth storey of an apartment building takes the elevator to the first...

The detective who knew the laws of physics

Detective walked into a room with no windows and found a dead man, who  was hanging from the ceiling, which is 12 feet above...

Successful detection of a crime

The detective opened the door to the Company director's office and surveyed the scene. director's head lay on the desk in a pool of blood....

Сhange the terms

A king, in order to select which one of his two sons will inherit his fortune, decides to have his sons compete in a...

Don’t Rush To Change The World

  Once upon a time, there was a king who ruled a prosperous country. One day, he went for a trip to some distant areas...

The Parable of Justice and Gold

One day, Emperor Akbar posed a question to his adviser and sage Birbal. He asked him what Birbal would choose if he offered either...

The Fair strategy

Two people are attempting to divide a cake into two equal pieces. However, no matter where one person places the knife, the other person says...

Mystery of the bisected apple

A serial killer invited a prospective victim to her place. She offered her an apple. When she refused, she insisted that they share the apple. So,...

The mystery of frost on the window

A guy was found dead in his study by his friend. The victim’s friend called the police. He told them that when he was walking...

The benefits of capacity seeing yourself through the eyes of others

Three hats are offered to two players – one white and two red. They close their eyes and are told that each of them will...

Complete to the Whole

A farmer wants to divide his 17 horses among his three sons. According to farmer the oldest son should get half of the horses,the...

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...