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Interview Process   |   Interview Puzzles / Aptitude
Amazon Interview Puzzles have been presented to you by GPuzzles.Com. The purpose of this post is to make the students (preparing for the interview) cognizant of the structure of Interview Questions in Amazon.

A Basic info about the company:
Amazon.com, Inc. is an American worldwide electronic commerce establishment with headquarters in Seattle, Washington, United States. It is the world's largest online retailer. Amazon.com started as an online bookstore, but soon expanded, selling DVDs, VHSs, CDs, video and MP3 downloads/streaming, software, video games, electronics, apparel, furniture, food, toys, and jewelry. The corporation also manufactures consumer electronics particularly the Amazon Kindle e-book reader and the Kindle Fire tablet computer and is a chief supplier of cloud computing services.

The following Amazon Interview Puzzles will enable the students to practice and be more confident while giving the interview.
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Amazon Interview Puzzle - Aptitude #1 - Gate to Heaven Interview Puzzle

Difficulty Popularity

Amanda dies and reaches at the gate of heaven. She has three doors in front of her out of which only one of them leads to heaven. Out of the other two gates, one leads to hell for one day and then back to the gate and one leads to hell for two days and then back to the gate. If she chooses one of these two gates, the gates are shuffled when she returns back.

How long will Amanda take to reach heaven?

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Amazon Interview Puzzle - Aptitude #2 - Mislabeled Candy Boxes Interview Puzzle

Difficulty Popularity

A new company has launched a range of juicy candies. There are two flavors of which these juice candies will be available for retail - Peach and Grape. The toffees are packed in three different boxes with one containing peach candies, one containing grape candies and one containing a mixture of both. It is informed that the packaging person has accidentally mislabeled all the three boxes.

If you are asked to label them correctly, how many candies will you have to pick and from which jar in order to label every box correctly?

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Amazon Interview Puzzle - Aptitude #3 - Truthcity or Liarcity Interview Puzzle

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You are extremely excited to finally visit Truthcity, a city where everyone speaks truth forever their life. On way, you find a two diverging roads and there is no board to suggest which way leads to the Truthcity. However you do know that the other road leads to Liarcity, a city where every single person always speaks a lie. You meet a man passing by who allows you to ask one question as he will not answer more than one. The problem is that you don't know whether the man is from Truthcity or the Liarcity.

What is the question that you will pop up that tells you the way to Truthcity?

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Amazon Interview Puzzle - Aptitude #4 - Jigsaw Trap Interview Puzzle

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Detective Hoffman wakes up in a room to find himself in a trap set by Jigsaw. The room has two exits i.e. two doors. One of the door leads to a chamber made by magnifying glass. If Hoffman exits through that door, the burning sun will fry him up within moments. The second door exit leads to a fire breathing dragon.

What is the possible way in which Detective Hoffman can set himself free from the Jigsaw trap?

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Amazon Interview Puzzle - Aptitude #5 - Poisoned Wine Interview Puzzle

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A King has a collection of 1000 bottles of irresistible and one of the finest wines in the world. The king is quite fond of drinking which is taken to be as a weak point by the neighboring king, He creates a plan to kill the king so that he can take over his kingdom and increase his power. He send in a servant to poison the wines with a deadly virus that is so strong that even if it is diluted a million times, it will still have an effect and will kill the king over a prolonged duration of one month.

The servant is able to mix poison in only one of the wines when the guards catch him. The servant is killed and thus the truth behind which of the 1000 bottles is poisoned dies with him. The king call up his advisor who is quite clever. He tells the king something which brightens up his face. He summons some of his prisoners. Seeking what the advisor told him, he knows that he will not have to murder more than ten prisoners and he will be able to enjoy the rest of the 999 bottles of wine after a month's time.

What trick did the advisor tell the king? How will the king be able to achieve what he thinks?

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Amazon Interview Puzzle - Aptitude #6 - Logical Sequence Interview Problem

Difficulty Popularity

Identify the next number in the sequence

31, 28, 31, 30, __?

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Amazon Interview Puzzle - Aptitude #7 - Age of Children Interview Puzzle

Difficulty Popularity

Lincoln and Michael gets acquainted in a bar. Lincoln offers a drink to Michael and they begin chatting. After a small conversation, Lincoln comes to know that Michael is married and has three children. He asks him, "How old are your children?" Michael thinks and then replies that the product of his children's ages is 72. Lincoln is puzzled and says that the information is not enough.

Michael tells him that if he goes outside and look at the building number posted on the door to the bar, he will get the sum of their ages. Lincoln goes outside and returns. Still puzzled, He tells Michael that the information is still not enough. Michael smiles and tells him that his youngest child loves strawberry ice cream.

How old are the children?

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Amazon Interview Puzzle - Aptitude #8 - Airplane Collision Interview Question

Difficulty Popularity

Read the question carefully as it can be quite tricky. There are four airplanes flying in four different directions. Each of the plane navigates a straight line at a constant speed. Please keep in mind that none of the two planes are flying parallel with each other. They began flying at the same time long time ago. Sometimes, even a collision takes place but the strong build, makes the planes continue with the journey. But even the sturdy built can only survive two collisions and after that the plane will crash.

Out of the six possible collisions, five have already taken place (do note that the collisions did not involve more than two planes at one time). Two planes have already crashed. What will be the fate of the remaining two planes?

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Amazon Interview Puzzle - Aptitude #9 - Light Switches Interview Puzzle

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A room has three light switches. The light switches are located outside the room with a closed door. Only one of them is the actual switch that can control the lights inside the room. You are allowed to turn those switches as many times as you wish. Please note that you can't identify from outside whether the lights are on or off.

You can enter the room only once to see the light. You can't change the light switches once you are inside. Rule out all the illogical answers like there is a window in the room or someone inside can help you with the answer etcetera.

Based on what information and guidelines have been provided to you, can you determine the exact switch that controls the light inside the room?

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Amazon Interview Puzzle - Aptitude #10 - Chasing Cats Interview Question

Difficulty Popularity

Suppose that there is a unit square. There are four cats sitting at the four different corners of the square. Each of those cats start chasing the other cat in the clockwise direction. The speed of the cats are same and constant and they continuously change their direction in a manner that they are always heading straight to the other cat.

How long will it take for the cats to catch each other? Where will they catch each other?

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