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Aptitude Questions : 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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Aptitude Questions : Hard Ten Boxes Interview Puzzle

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You have ten boxes and an electronic weighing machine. In those ten boxes, you have chocolates. Each chocolate weigh 20 grams. But in one box the chocolates are defective and each weigh 19 grams exactly.

Now you can weigh in the electronic weighing machine but you can use that machine just once. How will you find out which box has the defected chocolates.

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Aptitude Questions : Funny Brain Twister

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We all know that New Year occurs after a week from Christmas and thus it falls on the same day as of Christmas. But this will not happen in 2050. In 2050, Christmas will appear on Sunday while New Year will appear on Saturday.

How can this be possible ?

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Aptitude Questions : Famous Probability Puzzle

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This is a famous probability puzzle in which you have to choose the correct answer at random from the four options below.
Can you tell us whats the probability of choosing correct answer in this random manner.

1) 1/4
2) 1/2
3) 1
4) 1/4

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Aptitude Questions : IAS Interview Problem

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I need to divide numbers from 1 to 9 into two group such that sum of numbers in one group is equal to the sum of other group.
Note : 6 cannot be flipped over to make it 9.

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Aptitude Questions : Logic Problem Brain Teaser

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The world is facing a serious viral infection. The government of various countries have issued every citizen two bottles. You as well have been given the same. Now one pill from each bottle is to be taken every day for a month to become immune to the virus. The problem is that if you take just one, or if you take two from the same bottle, you will die a painful death.

While using it, you hurriedly open the bottles and pour the tablets in your hand. Three tablets come down in your hand and you realize they look exactly the same and have same characteristics. You can’t throw away the pill as they are limited and you can’t put them back or you may put it wrong and may die someday.

How will you ensure that you are taking the right pill?

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Aptitude Questions : Interview Balls Puzzle

Difficulty Popularity

In a closed jar, there are three strawberry candies, two mango candies and five pineapple candies. You can't see inside the jar. Now, how many toffees you must take out from the jar to make sure that you have one of each flavor?

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Aptitude Questions : Crossing The River In Minimum Time Puzzle

Difficulty Popularity

Four people need to cross a dark river at night.

* They have only one torch and the river is too risky to cross without the torch.
* If all people cross simultaneously then torch light wont be sufficient.
* Speed of each person of crossing the river is different.cross time for each person is 1 min, 2 minutes, 7 minutes and 10 minutes.

What is the shortest time needed for all four of them to cross the river ?

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Aptitude Questions : Measure Water Supply Brain Teaser

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You had an infinite supply of water and a 5 ml and 3 ml gallons.

How would you measure exactly 4 ml in least number of steps ?

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Aptitude Questions : Awesome Probability Logic Riddle

Difficulty Popularity

You need to divide 50 marbles(25-red and 25-blue) into two boxes such that the probability of picking red marble is maximized.

Following conditions need to hold true :
1. None of box is empty
2. All the marbles must be in one of two boxes.

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Aptitude Questions : Cool Equation Riddle

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If 1 + 9 + 11 = 1, Then what is the value of

12 + 11 + 9 = ?

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