#11 - Interview Marble Logic Puzzle

Difficulty Popularity

You are given a set of scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weigh the same or that the dish that falls lower has heavier contents than the other.
The 12 marbles appear to be identical. In fact, 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more.

Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light.
category : LOGIC

#12 - Hard Maths Number Riddle

Difficulty Popularity

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits
category : LOGIC | MATHS

#13 - Unlock The Distance Puzzle

Difficulty Popularity

Distances from you to Man united is written below.

CHELSEA and ARSENAL are 700 kms away
SPURS 1800 kms away
WOLVES 200 kms away

Based on the system , How far should it be to MANCITY ?

#14 - Tough Two Jug Measuring Puzzle

Difficulty Popularity

I got two jugs of
A) 11 liter
B) 6 liter

How can I measure exactly 9 liters ?
category : LOGIC | MEASURE

#15 - Popular Tricky Picture Death Riddle

Difficulty Popularity

AS you can see the picture, all you have to do is analyze it and tell who all from the pictured people will die if the person at E pushes the round object to the slide on the slope. Keep in mind all the physics and the terrain while you analyze the things.

#16 - Find Out Who Survives Riddle

Difficulty Popularity

100 people are standing in a circle. The person standing at number 1 is having a sword. He kills the person next to him with the sword and then gives the sword to the third person. This process is carried out till there is just one person left.

Can you find out who survives?
category : LOGIC | MATHS

#17 - Extremely Hard Civil Services Problem

Difficulty Popularity

( ) + ( ) + ( ) + ( ) + ( ) = 30
This is what you have for equation. The following are the numbers that you can use to fill in the brackets:
1, 3, 5, 7, 9, 11, 13 and 15

You can repeat the numbers if required. The resulting sum should be 30.

This question appeared in the UPSC final examination in December 2013. Out of all the people who appeared, only one guy was able to solve this namely Gaurav Agarwal.

Can you solve it?

#18 - The Fifth Card Magic Trick Puzzle

Difficulty Popularity

Famous magicians Dylan Rhodes and Daniel Atlas performed an exhilarating magic trick in my last birthday party. Since, it was my birthday, Rhodes asked me to shuffle a new deck and pick any five cards out of it. I took out the cards as asked, looked at them and then showed all five cards to Rhodes. Rhodes then gave four cards to Daniel and the remaining fifth card to me. Daniel looked at the four cards for about ten seconds and then he told me what card I was holding.

Surprise, Surprise! He was right!

It was quite surprising to me at that time, but when I reached back home, I was able to crack the trick behind the magic.

Can you?

category : LOGIC

#19 - Hardest Which Coffee(Tea) Cup Will Fill First

Difficulty Popularity

Get ready to exercise your logic and puzzling skills with the all-time favorite 'Which Cup Will Fill First?' brain teaser!

category : LOGIC | PICTURE

#20 - A numeric lock has 3 digit key Riddle

Difficulty Popularity

A numeric lock has 3 digit code with the below rules:

(3,0,2)one number is correct and well-placed;
(3,5,6)one number is correct but wrong placed;
(5,7,4)Two numbers are correct but wrong placed;
(6,8,9)nothing is correct;
(6,7,0)one number is correct but wrongly placed

category : LOGIC | EQUATION

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