The spinning girl
Which direction does the girl rotate?
Clockwise or counterclockwise
If you shift your gaze to the shadow,
in the same instant, the direction of rotation will change.You...
Elevator puzzle: test your creative skills
On his way to work each morning, a man living on the fifteenth storey of an apartment building takes the elevator to the first...
A bus stop pick-up riddle
While driving on your way home, you pass by a bus stop and see among the people waiting for the bus, an old lady...
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...
Mystery of Missing Petrol
During the petrol transporting from one plant to another, the fuel tanker ever wasted 10 litres of petrol.
The process of filling the tank at...
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...
Simple password
A man wanted to enter an exclusive club but did not know the password that was required. He waited by the door and listened.
A...
Trouble-shooter’s solution
A well-known shoe company has established the production of sneakers in one of the poor countries of Africa. However, over time, the owners noticed...
Damage in favor
An absolute failure lived in Las Vegas.
He was always losing. Suddenly, he married a beautiful woman - millionaire. They started to visit casino...
Emperor’s bold decision
At the beginning of our era, the Japanese had a custom: when the military commander passed away, all his servants were buried alive along...
Sarah Bernardth creative solution
The great French actress Sarah Bernhardt, at the height of her fame, found a rival in the person of one young actress, who was...
Detective’s find
Once a detective found a pipe, a top hat, a scarf,
a carrot and five pieces of coal lying together
in the middle of a field.
What...











