# Category Archives: Puzzles

## Puzzle 25 | (Chessboard and dominos)November 9, 2015

There is an 8 by 8 chessboard in which two diagonally opposite corners have been cut off.You are given 31 dominos, and a single domino… Read More »

## Puzzle 24 | (10 Coins Puzzle)

You are blindfolded and 10 coins are place in front of you on table. You are allowed to touch the coins, but can’t tell which… Read More »

## Puzzle 23 | (Days of month using 2 dice)November 8, 2015

How can you represent days of month using two 6 sided dice? You can write one number on each face of the dice from 0… Read More »

## Puzzle 22 | (Maximum Chocolates)October 16, 2015

You have 15 Rs with you. You go to a shop and shopkeeper tells you price as 1 Rs per chocolate. He also tells you… Read More »

## Puzzle 21 | (3 Ants and Triangle)June 7, 2015

There are 3 ants sitting on three corners of a triangle. All ants randomly pick a direction and start moving along edge of the triangle.… Read More »

## Puzzle 20 | (5 Pirates and 100 Gold Coins)May 18, 2015

There are 5 pirates, they must decide how to distribute 100 gold coins among them. The pirates have seniority levels, the senior-most is A, then… Read More »

## Puzzle 19 | (Poison and Rat)April 4, 2015

There are 1000 wine bottles. One of the bottles contains poisoned wine. A rat dies after one hour of drinking the poisoned wine. How many… Read More »

## Puzzle 18 | (Torch and Bridge)March 20, 2015

There are 4 persons (A, B, C and D) who want to cross a bridge in night. A takes 1 minute to cross the bridge.… Read More »

## Puzzle 17 | (Ratio of Boys and Girls in a Country where people want only boys)March 18, 2015

In a country, all families want a boy. They keep having babies till a boy is born. What is the expected ratio of boys and… Read More »

## Puzzle 16 | (100 Doors)March 17, 2015

There are 100 doors in a row, all doors are initially closed. A person walks through all doors multiple times and toggle (if open then… Read More »

## Puzzle 15 | (Camel and Banana Puzzle)March 11, 2015

A person has 3000 bananas and a camel. The person wants to transport maximum number of bananas to a destination which is 1000 KMs away,… Read More »

## Puzzle 14 | (Strategy for a 2 Player Coin Game)March 10, 2015

Consider a two player coin game where each player gets turn one by one. There is a row of even number of coins, and a… Read More »

## Puzzle 13 | (100 Prisoners with Red/Black Hats)March 9, 2015

100 prisoners in jail are standing in a queue facing in one direction. Each prisoner is wearing a hat of color either black or red.… Read More »

## Puzzle 12 | (Maximize probability of White Ball)March 7, 2015

There are two empty bowls in a room. You have 50 white balls and 50 black balls. After you place the balls in the bowls,… Read More »

## Puzzle 11 | (1000 Coins and 10 Bags)March 6, 2015

A dealer has 1000 coins and 10 bags. He has to divide the coins over the ten bags, so that he can make any number… Read More »