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...

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 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, at...

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...

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...

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...

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...

Ancient Coin: Solve the Mindful Riddle

Egyptian Coin Mindfulness Challenge: Decode the Past An archeologist claims he found a Roman coin dated 46 B.C. in Egypt. Note: Roman coins can really...

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...

The Relativity of Truth

“What is your age?” asked the judge. “Remember you’re under oath” “I am twenty one years and some months” the woman answered. Really she was an...

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...

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...