INTERVIEW RIDDLES

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Riddles and Answers © 2017
Interview Riddles
Interview riddles are leading questions that were proposed throughout interviews by prominent companies during the last decade or so. This trend is said to have disappeared over the past few years when interviewees complained about the tenacity of such questions after being denied jobs.

Though the tactic of asking tough riddles during interviews has dissipated lately, the amazement of people on the internet has grown. Along with this so has the popularity of sharing and solving these tough questions has risen as well.

So do you think you have what it takes to do what some of the top geniuses at Google, and Microsoft have done by solving these tricky brain teasers? Do your best; this group is here for the taking.

This collection is here for the sharing too, don't be shy to challenge a friend or two with these intriguing puzzles.

Solitary Confinement Riddle

Hint:
To get the guard to give you a cigarette (and this really is the preferred answer to this question), threaten to kill yourself by smashing your head against the wall of your cell. That gives you leverage with the guard - hed be tied up by doing paperwork about your suicide, so hed miss weekend time with his family (its Friday afternoon, remember?) -- so hell give you a cigarette.
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The Non Digital Clock Riddle

Hint:
The hour hand will have moved one-fourth of an hour; therefore, there will be 7.5 degrees between the two hands.
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The Center Of A Rubiks Cube

Hint:
There is only one cube at the center of a Rubiks Cube.
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Black Socks Riddle

Hint:
Pick three; there are only two colors.
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3 Envelops Riddle

Hint:
Yes, you should switch the envelope. In the beginning when you picked up the envelope, you had a 1/3 probability of finding an offer letter in the envelope. There was 2/3 chance that the letter was there in the two envelopes on the table.

If you keep your selected envelope, you still have a 1/3 chance of finding an offer letter in that. However, since the interviewer has removed one empty envelope from the table, if you switch, you have a probability of 2/3 that the offer letter is inside that.
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Losing A New York Bet

Hint:
This problem can be best solved using the pigeonhole principle.

The argument will go like this:
Assume that all the non-bald people in NYC have different number of hairs on their head. The population is about 9 million and let us assume that there are 8 million among them who are not bald.

Now, those 8 million people need to have different number of hairs. On an average, people have just 100, 000 hairs on their head. If we keep on assuming that there is someone with just one hair, someone with two, someone with three and so on, there will be 7, 900, 00 other people left who will have more than 100, 000 hairs on their head and need different number of hairs.

Now, as per this assumption, if we keep increasing one hair for each person, to make everybody hair different in numbers, we will come across someone with 8, 000, 000 hairs. But that is practically impossible (even 1, 000, 000 is impossible). Thus there must be two people who are having same number of hairs.
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BDay Bash Riddle

Hint:
23rd.

The easiest way to find out without engaging in any formula would be to simply add them:
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 + 21 + 22 + 23 = 276
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10 Boxes Riddle

Hint:
Let us simplify boxes by naming them from 1 to 10.
Now the trick here is to pick different number of balls from different boxes. So to simplify things, we will pick balls corresponding to box number.

Thus, pick 1 ball from Box 1, 2 balls from box 2, 3 balls from box 3 and so on. You will have 55 balls altogether. Now, put them all in the balance.

If all balls were weighing accurate 10 grams, the total weight of the 55 balls would have been 550 grams. But one of the box must have had the defective balls.

Suppose if the defective balls were in box number 2, then the total weight will be 2 grams less than 550. If the defective balls were in box 8, the total weight will be less than 8 grams from 550. In this way, you will be able to identify which box has the defective balls.
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2 Burning Candles

Hint:
Burn one candle from both the ends and simultaneously burn the other candle from just one end. In half an hour, the first candle would have been burnt fully and the second one would have been burnt half. Now light the other end of the second candle as well. In this way, the second candle will take only half the time (30/2 = 15) to burn fully.

Thus, you will have measured forty five minutes.
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On A Hiking Trip Riddle

Hint:
You can see that they decided to form a pentagonal formation.
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Post Your Interview Riddles Below

Can you come up with a cool, funny or clever Interview Riddles of your own? Post it below (without the answer) to see if you can stump our users.
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