• 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

1Find ages of daughtersGoogle, Microsoft
2Calculate total distance travelled by beeYahoo
3Puzzle – 6×6 Grid: How Many Ways?Amazon, Zoho
4Monty Hall problemVMWare
5Torch and BridgeGoogle, Microsoft
62 Eggs and 100 FloorsVMWare
7Maximize the probability of White BallAmazon
8Poison and RatAmazon
9Hourglasses PuzzleBank of America, Yahoo
10The ratio of Boys and Girls in a Country where people want only boysGoogle, Goldman Sachs
11Car Wheel PuzzleMakeMytrip
12Maximum ChocolatesInfosys, MakeMytrip
13Puzzle | Splitting a Cake with a Missing Piece in two equal portionAlcatel-Lucent, Cognizant
14Rs 500 Note PuzzleCAT, UPSC
15Girl or BoyAmazon
16Know Average Salary without Disclosing Individual SalariesInfosys, Bloomberg.
17Maximum run in cricketFAANG
18Completion of TaskReflexis Systems
19Find missing Row in Excelphilips
20Four People on a Rickety BridgeJumbotail, SAP
21Man fell in well PuzzleAmerican Express
2250 red marbles and 50 blue marblesGoogle, Microsoft, JP morgan chase
23Puzzle | Form Three Equilateral TrianglesGoogle
2410 identical bottles of pillsZS Associate
25Puzzle | Maximum pieces that can be cut from a Circle using 6 straight linesTCS
26Chain Link Puzzlecognizant
27The shopkeeper and the lady who made a purchase of Rs 200 with fake notePersistent Systems
28Egg Dropping Puzzle with 2 Eggs and K FloorsGoogle, Microsoft
29Minimum number of Apples to be collected from trees to guarantee M red applesLeetcode
30Snail and WallTCS
311000 light bulbs switched on/off by 1000 people passing byUK university interview
32Puzzle | Four Alternating KnightsAmazon, Google
33TCS DIGITAL PUZZLE | Lateral Thinking 2TCS
34Puzzle | 100 Cows And MilkZS
35Puzzle | One Mile on the GlobeMicrosoft
36TCS DIGITAL PUZZLE | Lateral ThinkingTCS
37Puzzle | The Counters and BoardJP-morgan
38Camel and Banana PuzzleAmazon, Yahoo
39Puzzle | (Six Matches , Right Foot Forward)TCS
40How much he had initially?IAS interview question
41Puzzle | 3 cuts to cut round cake into 8 equal piecesAdobe, Citius Tech, Cognizant, blackrock
42Two Creepers Climbing a TreeAdobe, Google, Microsoft

    Recent articles on Analytical/mathematical puzzles




Logical Puzzles:


Puzzle Title

Asked in Company

1Pay an employee using a gold rod of 7 units ?FAANG, Ola cabs
2Find the fastest 3 horsesAccolite, Goldman Sachs, MakeMyTrip
3Finding the injection for AnesthesiaGoogle, Yahoo
43 Bulbs and 3 SwitchesMakeMyTrip, Qualcomm
5Camel and Banana PuzzleAmazon, Yahoo
6Find the Jar with contaminated pillsMakeMyTrip
7100 Prisoners with Red/Black HatsGoogle, Microsoft
810 Coins PuzzleGoogle, Yahoo
9Strategy for a 2-Player Coin GameTCS
105 Pirates and 100 Gold CoinsMicrosoft
11Minimum cut PuzzleAmazon
12Prisoner and Policeman PuzzleMicrosoft
13Puzzle – Cheating HusbandMicrosoft, Google
14Puzzle – Blind GamesBloomberg L.P.
15Puzzle – Chameleons go on a dateAmazon
16Heaven and HellAmazon, Infosys
17Mislabeled JarsGoogle, Microsoft
188 balls problemMicrosoft, Simence
19Cheryl’s Birthday Puzzle and SolutionFacebook, Whatsapp, Singapore math Olympic
20Puzzle – The Lion and the UnicornThe Access Group (UK), TCS
21Farmer, Goat, Wolf, and CabbageInfosys
22Water Jug ProblemWells Fargo
23Blind man and PillsMentor Graphics
24The Burning CandlesWipro
25Puzzle | The Burning CandlesWipro, IBM, TCS
26Rat and Poisonous Milk BottlesGoogle
27Measuring 6L water from 4L and 9L bucketsMicrosoft
28Six Houses P, Q, R, S, T, and UCAT Quiz
29Melting CandlesFaang
30Red Hat vs Blue HatMicrosoft
31Puzzle | Joint family of seven persons (L, M, N, O, P, Q, and R)TCS
32Puzzle | The Circle of LightsMicrosoft, Bloomberg
33Puzzle | 9 Students and Red Black HatsGoogle
34Light all the bulbsMicrosoft, Bloomberg
35Distribute the WaterMicrosoft
36Puzzle | Can 2 persons be with same number of hairs on their heads?oppo, inflame
37Weight of Heavy BallIBM

    Recent articles on Logical puzzles


Arrangement Puzzles:


Puzzle Title

Asked in Company

110 Coins PuzzleGoogle, Yahoo
2Days of the month using 2 diceMicrosoft
3Tic Tac Toe PuzzleAmazon
4Matchstick PuzzleKirloskar Brothers, SLB
5Last Palindrome Date Before 10/02/2001Amazon
610 identical bottles of pillsZS Associate
710 Balls in 5 LinesPublicis Sapient
8Round table coin gameElectrifAi
9Puzzle | The Circle of LightsMicrosoft, Bloomberg

    Recent articles on Arrangement puzzles


Shape based Puzzles:


Puzzle Title

Asked in Company

13 cuts to cut the round cake into 8 equal piecesAdobe, Citius Tech, Cognizant
2Chessboard and dominosGoogle
3Puzzle 36 | (Matchstick Puzzle)SLB
4Maximum pieces that can be cut from a Circle using 6 straight linesTCS
5Splitting a Cake with a Missing Piece in two equal portionSAP
63 Ants and TriangleIntuit, 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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