Top 100 Puzzles Asked In Interviews

Below is the list of the top 100 puzzles that are asked in Interviews.

Logical Puzzles:

S.No.	Puzzle Title	Asked in
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

Mathematical And Analytical Puzzles:

S.No.	Puzzle Title	Asked in
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

Arrangement Puzzles:

S.No.	Puzzle Title	Asked in
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

Shape Puzzles:

S.No.	Puzzle Title	Asked in
1.	3 cuts to cut the round cake into 8 equal pieces	Adobe, Citius Tech, Cognizant
2	Chessboard and dominos	Google
3	Maximum pieces that can be cut from a Circle using 6 straight lines	TCS
4	Splitting a Cake with a Missing Piece in two equal portion	SAP
5	3 Ants and Triangle	Intuit, ZS Associate, EXL

Other Puzzles:

S.No.	Puzzle Title	Asked in
1.	How to Measure 45 minutes using two identical wires?	MakeMyTrip
2	Elevator Puzzle	FAANG
3	Find the last ball to remain after the entire process	Times Internet, EXL Service
4	100 people in a circle with a gun puzzle	IgniWorld
5	Find the total guests that are present at the party	Google