# Category Archives: Puzzles

## Minimum number of moves required to solve a Jigsaw Assembly Puzzle

Puzzle: You are given a jigsaw puzzle that contains n pieces. A “section” of the puzzle is a set of one or more pieces that… Read More »

## Puzzle: Transferring the tourists

Puzzle: A group of 25 tourists had to cross a wide and deep river with no bridge in sight. They notice two 10-year-old boys playing… Read More »

## Dividing the rectangle into n right-angled triangles

Puzzle: Find all values of n > 1 for which one can divide a rectangle into n right-angled triangles. Answer: We can divide any rectangle… Read More »

## Puzzle | Snail and Wall

Puzzle: A snail wishes to reach a water shore. To do this it must cross a wall which is 30 feet high. It has a… Read More »

## Minimum number of cuts required to pay salary from N length Gold Bar

Given a gold bar of length N with N equal markings, the task is to find the minimum number of cuts required to pay the… Read More »

## Eggs dropping puzzle | Set 2

Given N eggs and K floors, the task is to find the minimum number of trials needed in the worst case to find the floor… Read More »

## Find last two remaining elements after removing median of any 3 consecutive elements repeatedly

Given a sequence A1, A2, A3, … An of distinct integers. The task is to find the last 2 remaining elements after removing the median… Read More »

## Puzzle | Car and Helium Balloon motion

Puzzle: A Geek was in a car with a helium balloon on a string that is tied to the floor. The windows are closed. When… Read More »

Puzzle: There are 3 dragons. One of them always speaks the truth, one always lies and one alternate between truth and lie. A series of… Read More »

## Puzzle | 9 Students and Red Black Hats

Puzzle: There are 9 IITians in a classroom. A professor enters the room with a bag. He says to them that there are 9 hats… Read More »

## Puzzle | Probability of finding a job

Puzzle: There is a interview going on and Ram is selected for interview to 3 posts. The total number of candidates appearing for the first,… Read More »

## Puzzle | How much he had initially?

Puzzle: Rama started on a quest of visiting temples, with few coins in his pockets. As soon as he visits any temple, the money in… Read More »

## Puzzle | King Octopus and Servants

Puzzle: There was a water kingdom where lived a king octopus with his few servants. The servants either had 6, 7 or 8 legs. It… Read More »

## Puzzle | How long was he walking

Puzzle: Ram used to arrive at the railway station every day at 6 pm from work. As soon as Ram arrived at the station, his… Read More »

## Puzzle | Rope Escape

Puzzle: Raghav is trapped on top of a building and wishes to reach the ground safely. He has with him a piece of rope running… Read More »