## World's Hardest Easy Geometry Puzzle Solved with Techniques Explained Step by Step

World's hardest easy geometry problem is to be solved by elementary geometry only and that makes it hard. Hint: Increase symmetry in the puzzle figure.

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For each one, first the puzzle is posed for you to solve within a recommended time. A detailed systematic solution then follows.

Matchstick puzzles, riddles, math puzzles, logic puzzles, river crossing puzzles, ball weighing puzzles are some of the categories.

The **full list of all brain teasers with solutions** is available in the link,

**Challenging brain teasers with solutions: Long list.**

This will always be the **most up-to-date list** with the brain teasers **classified into categories** that can be browsed separately.

Submitted by Atanu Chaudhuri on Tue, 04/08/2020 - 22:53

World's hardest easy geometry problem is to be solved by elementary geometry only and that makes it hard. Hint: Increase symmetry in the puzzle figure.

Submitted by Atanu Chaudhuri on Tue, 28/04/2020 - 22:05

In this matchstick triangle puzzle you have to remove 2 matchsticks to reduce number of triangles from 8 to 6. How many ways can you do it? Time 30 mins.

Submitted by Atanu Chaudhuri on Sun, 26/04/2020 - 21:39

Find the 10 digit number with each digit different and each number formed by first n digits divisible by n. Step by step solution by basic math explained.

Submitted by Atanu Chaudhuri on Wed, 08/04/2020 - 20:40

In this second 8 balls weight puzzle, find the fake ball in 3 weighs. All 8 balls look alike and you are given a pan balance without any weights.

Submitted by Atanu Chaudhuri on Mon, 06/04/2020 - 20:24

In this first 8 balls weight puzzle, find the single heavier ball in 2 weighs. All 8 balls look alike and you are given a pan balance with no weights.

Submitted by Atanu Chaudhuri on Sun, 05/04/2020 - 00:28

3 couples to cross a river in a boat that can carry at most two at a time. Husbands are jealous and no lady will be with a male other than her husband...

Submitted by Atanu Chaudhuri on Sat, 04/04/2020 - 14:59

3 monkeys and 3 humans are to cross a river in a small boat. The boat can carry at most 2 on a trip. Monkeys will eat up humans if more in number...

Submitted by Atanu Chaudhuri on Thu, 02/04/2020 - 21:21

Can you solve this tricky river crossing puzzle in 15 minutes? 2 pigs and 2 hens to cross a river in an automated boat that starts automatically. Read on...

Submitted by Atanu Chaudhuri on Wed, 01/04/2020 - 02:44

Fox goose corn riddle: Farmer to cross river with fox, goose and corn in a boat that takes at most two. Fox eats goose and goose eats corn if left alone.

Submitted by Atanu Chaudhuri on Sat, 28/03/2020 - 13:50

Move 3 matches to make 2 squares in matchstick puzzle figure. How many solutions can you find? Time to solve 5 minutes. It is a fun puzzle. Give it a try.