Last Updated : 17 Feb, 2023

Practice Problems on Puzzles
Recent articles on Puzzles

What is a Puzzle?

A puzzle is a game, problem, or piece of information about any facts, clues, etc., that tests a person’s ingenuity or knowledge. A person is required to put pieces or the given information together in a logical way to arrive at the answer.

Puzzles check the intellect, common sense, knowledge, awareness, logic and reasoning ability of a person. Crossword puzzles, word-search puzzles, number puzzles, relational puzzles, and logic puzzles are different genres of puzzles. The academic study of puzzles is enigmatology.

We at GeeksforGeeks have tried to cover all the reasoning questions, which are asked in competitive exams. We have provided tips and tricks to solve maximum questions in less time. By solving puzzles regularly at GeeksforGeeks, you would be able to master your reasoning and crack your desired examination.

Types of Puzzles

Reasoning or Puzzles can be divided into four parts as per a common examination pattern:

  1. Analytical
  2. Logical
  3. Shape and Arrangement
  4. Mechanical

Topics :

Analytical / Mathematical Puzzles:


Puzzle Title

Asked in Company

1 Find ages of daughters Google, Microsoft
2 Calculate total distance travelled by bee Yahoo
3 Puzzle – 6×6 Grid: How Many Ways? Amazon, Zoho
4 Monty Hall problem VMWare
5 Torch and Bridge Google, Microsoft
6 2 Eggs and 100 Floors VMWare
7 Maximize the probability of White Ball Amazon
8 Poison and Rat Amazon
9 Hourglasses Puzzle Bank of America, Yahoo
10 The ratio of Boys and Girls in a Country where people want only boys Google, Goldman Sachs
11 Car Wheel Puzzle MakeMytrip
12 Maximum Chocolates Infosys, MakeMytrip
13 Puzzle | Splitting a Cake with a Missing Piece in two equal portion Alcatel-Lucent, Cognizant
14 Rs 500 Note Puzzle CAT, UPSC
15 Girl or Boy Amazon
16 Know Average Salary without Disclosing Individual Salaries Infosys, Bloomberg.
17 Maximum run in cricket FAANG
18 Completion of Task Reflexis Systems
19 Find missing Row in Excel philips
20 Four People on a Rickety Bridge Jumbotail, SAP
21 Man fell in well Puzzle American Express
22 50 red marbles and 50 blue marbles Google, Microsoft, JP morgan chase
23 Puzzle | Form Three Equilateral Triangles Google
24 10 identical bottles of pills ZS Associate
25 Puzzle | Maximum pieces that can be cut from a Circle using 6 straight lines TCS
26 Chain Link Puzzle cognizant
27 The shopkeeper and the lady who made a purchase of Rs 200 with fake note Persistent Systems
28 Egg Dropping Puzzle with 2 Eggs and K Floors Google, Microsoft
29 Minimum number of Apples to be collected from trees to guarantee M red apples Leetcode
30 Snail and Wall TCS
31 1000 light bulbs switched on/off by 1000 people passing by UK university interview
32 Puzzle | Four Alternating Knights Amazon, Google
33 TCS DIGITAL PUZZLE | Lateral Thinking 2 TCS
34 Puzzle | 100 Cows And Milk ZS
35 Puzzle | One Mile on the Globe Microsoft
36 TCS DIGITAL PUZZLE | Lateral Thinking TCS
37 Puzzle | The Counters and Board JP-morgan
38 Camel and Banana Puzzle Amazon, Yahoo
39 Puzzle | (Six Matches , Right Foot Forward) TCS
40 How much he had initially? IAS interview question
41 Puzzle | 3 cuts to cut round cake into 8 equal pieces Adobe, Citius Tech, Cognizant, blackrock
42 Two Creepers Climbing a Tree Adobe, Google, Microsoft

    Recent articles on Analytical/mathematical puzzles




Logical Puzzles:


Puzzle Title

Asked in Company

1 Pay an employee using a gold rod of 7 units ? FAANG, Ola cabs
2 Find the fastest 3 horses Accolite, Goldman Sachs, MakeMyTrip
3 Finding the injection for Anesthesia Google, Yahoo
4 3 Bulbs and 3 Switches MakeMyTrip, Qualcomm
5 Camel and Banana Puzzle Amazon, Yahoo
6 Find the Jar with contaminated pills MakeMyTrip
7 100 Prisoners with Red/Black Hats Google, Microsoft
8 10 Coins Puzzle Google, Yahoo
9 Strategy for a 2-Player Coin Game TCS
10 5 Pirates and 100 Gold Coins Microsoft
11 Minimum cut Puzzle Amazon
12 Prisoner and Policeman Puzzle Microsoft
13 Puzzle – Cheating Husband Microsoft, Google
14 Puzzle – Blind Games Bloomberg L.P.
15 Puzzle – Chameleons go on a date Amazon
16 Heaven and Hell Amazon, Infosys
17 Mislabeled Jars Google, Microsoft
18 8 balls problem Microsoft, Simence
19 Cheryl’s Birthday Puzzle and Solution Facebook, Whatsapp, Singapore math Olympic
20 Puzzle – The Lion and the Unicorn The Access Group (UK), TCS
21 Farmer, Goat, Wolf, and Cabbage Infosys
22 Water Jug Problem Wells Fargo
23 Blind man and Pills Mentor Graphics
24 The Burning Candles Wipro
25 Puzzle | The Burning Candles Wipro, IBM, TCS
26 Rat and Poisonous Milk Bottles Google
27 Measuring 6L water from 4L and 9L buckets Microsoft
28 Six Houses P, Q, R, S, T, and U CAT Quiz
29 Melting Candles Faang
30 Red Hat vs Blue Hat Microsoft
31 Puzzle | Joint family of seven persons (L, M, N, O, P, Q, and R) TCS
32 Puzzle | The Circle of Lights Microsoft, Bloomberg
33 Puzzle | 9 Students and Red Black Hats Google
34 Light all the bulbs Microsoft, Bloomberg
35 Distribute the Water Microsoft
36 Puzzle | Can 2 persons be with same number of hairs on their heads? oppo, inflame
37 Weight of Heavy Ball IBM

    Recent articles on Logical puzzles


Arrangement Puzzles:


Puzzle Title

Asked in Company

1 10 Coins Puzzle Google, Yahoo
2 Days of the month using 2 dice Microsoft
3 Tic Tac Toe Puzzle Amazon
4 Matchstick Puzzle Kirloskar Brothers, SLB
5 Last Palindrome Date Before 10/02/2001 Amazon
6 10 identical bottles of pills ZS Associate
7 10 Balls in 5 Lines Publicis Sapient
8 Round table coin game ElectrifAi
9 Puzzle | The Circle of Lights Microsoft, Bloomberg

    Recent articles on Arrangement puzzles


Shape based Puzzles:


Puzzle Title

Asked in Company

1 3 cuts to cut the round cake into 8 equal pieces Adobe, Citius Tech, Cognizant
2 Chessboard and dominos Google
3 Puzzle 36 | (Matchstick Puzzle) SLB
4 Maximum pieces that can be cut from a Circle using 6 straight lines TCS
5 Splitting a Cake with a Missing Piece in two equal portion SAP
6 3 Ants and Triangle Intuit, ZS Associate, EXL

    Recent articles on Shape based puzzles


Mechanical Puzzles:

  1. Algorithm to solve Rubik’s Cube
  2. Crossword Puzzle Of The Week #1 (for DSA)
  3. Crossword Puzzle Of The Week #2 (for Computer Science and Applications)
  4. Crossword Puzzle Of The Week #3 (for Database and Queries)
  5. Crossword Puzzle Of The Week #4 (for Object Oriented Programming)

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