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...

A cup of tea. Creative Puzzle

A man called to a waiter in a restaurant, "There's a fly in my tea!" The waiter replied, "I will bring you a fresh cup."...

Life-saving decision for the ship and crew

A Navy sailor on the deck of a cruiser noticed an naval mine in the water directly in the path of the ship. With...

Personal mechanisms of sense creation

Sergey L. Markov.  Personal mechanisms of sense creation The paper discusses and analyzes the personal mechanisms of grasping and creating the new meanings. The system...

King Akbar’s Line

One day the Great Akbar drew a line on the floor and asked his sage Birbal to shorten it without touching and wiping out...

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...

Ship Ladder Puzzle

A ship is at anchor. Over its side hangs a rope ladder with rungs a foot apart. The tide rises at the...

Small coin in the bottle

A guy claims to do the following thing. He puts a coin in a glass bottle. Then, he shuts the mouth of the bottle...

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...

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...

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 Light Switches Riddle

There are three switches outside a closed room. There are three lamps inside the room. You can flip the switches as much as you...