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These form resources related to problem solving, critical thinking, creativity and so on.


Brain teaser: Puzzles and brain teasers followed by detailed solutions, and not just answers.

Sudoku: Detailed explanatory Sudoku game plays at hardness level Easy, Medium, Hard and Very hard. The series is ideal for learning hands-on how to play Sudoku with growing skill even by an absolute beginner.

Reflections: Thoughtful articles on varied topics.

Innovative creations: Showcasing creativity in ideas or things.

Monkey and the coconuts puzzle with solutions


An older version of the monkey and the coconuts puzzle was modified by short story writer Ben Williams and published nearly a century ago. From then on the intriguing puzzle attained the status of one of the most attempted and least solved math puzzles of all time. We will present here easily understandable solutions to both using mathematical reasoning and for the modified version using in addition systematic enumeration…

Counting eggs puzzles based on Euclid's division lemma


We will first present the classic folk puzzle of counting eggs for you to solve. Proceeding further, two ways to the solution will be presented and then the binding characteristics for this type of puzzles will be brought out in the form of framework for creation and systematic solution of similar types of puzzles...

Matchstick puzzle, 5 squares to 4 squares in 2 moves

thumb 5 squares to 4 squares in 2 stick moves matchstick puzzle

You need to transform a 5 square configuration of matchsticks to 4 square configuration by moving only two matchsticks. Recommended time 20 minutes. This puzzle and its three solution approaches impart rich new learning in problem solving methods, especially the powerful method of End state analysis approach...

How to solve Einstein's puzzle Whose fish confidently, an improved method based solution


Five nationals live in five differently colored houses, keep five different pets, drink five different fluids and smoke five different brands of cigarette. From 15 given statements, you have to answer—who owns the fish? Known popularly as Einstein's puzzle it was solved here more than one and half years back. This is an improved method based solution that can be understood and strategies learned by anyone...

Solution of 6 triangles to 5 triangles by 2 moves first matchstick puzzle

thumb solution 6 triangle to 5 triangle matchstick puzzle

Matchstick puzzles are popular as sticks are easily available and matchstick figures can be physically changed in any way with ease. The solution to the first matchstick puzzle involves clarity in analytical reasoning on shapes, pattern identification and ability to form effective methods...

Reverse cheque puzzle solution

thumb_reverse cheque puzzle solution

On finally receiving double the amount he wrote in cheque after 20 paise was expended from amount received from bank, Bhabababu understood that the bank cashier must have given rupees for paise written on cheque, and paise for rupees written on cheque. The reversing created a basic confusion in finding the cheque amount...

Reverse cheque puzzle

thumb_reverse cheque puzzle

Bhabababu received double the money he wrote in his cheque... His alert mind quickly got to the heart of the mystery. It was a simple but grave mistake made by the cashier...but again, Bhabababu knew what he wrote in his cheque, you don't. Nevertheless, if you devote a bit of interested time, you would surely know. It is not difficult on the surface...


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