Mind Teasers : which number should replace the question mark In The Circle Below

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which number should replace the question mark In The Circle Below ?

category : SERIES | PICTURE

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Mind Teasers : Awesome Logic Brain Teaser

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Q1. Find out the first question where the right answer is c)
a) Q3
b) Q4
c) Q1
d) Q2

Q2. Find out the first question where the right answer is a)
a) Q4
b) Q2
c) Q3
d) Q1

Q3. Find out the first question where the right answer is d)
a) Q1
b) Q2
c) Q4
d) Q3

Q4. Find out the first question where the right answer is b)
a) Q2
b) Q4
c) Q3
d) Q1
category : LOGIC

Mind Teasers : Relation Sorcery Riddle

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The father of a driver's son is sitting with the son of the driver without the driver actually being in the car.

What sorcery is this?
category : LOGIC

Mind Teasers : Logical Triplets Statement Riddle

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You know three triplets: Eden Thorgan and Kylian.
Eden always tells the truth while Thorgan and Kylian always lie.
Kylian needs to return you 100$. You meet one of them on London streets and can ask him one three word question.

Which question, will you ask and why?

Mind Teasers : Spatial Trivia Physics Puzzle

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As shown in picture, there are four gears with the following specification
* Gear A has 60 teeth
* Gear B has 40 teeth
* Gear C has 20 teeth
* Gear D has 60 teeth
* Every minute, Gear B makes 15 complete turns.

What is the relative speed of Gear A and Gear B?

Mind Teasers : Toughest Number Series Question

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Solve the number series by identifying the last number.

1 4 5 6 7 9 11 ?
category : LOGIC | SERIES

Mind Teasers : Logic Interview Riddle

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prinka and tanu organized a small kitty party at home. They purchased a barrel of fruit juice.

Tanu told to prinka 'I bet this barrel of fruit juice is more than half full'.
'No, its less than half full' prinka replied.

I don't have any measuring instrument and without removing fruit juice from it , how can i determine which of us is right ?
category : LOGIC

Mind Teasers : 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

Mind Teasers : Maths Logical Brain Teaser

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A man of faith visits the holy land where three temple are erected in a row offering a surreal divinity to the place. Awestruck at the sight of the magnificent temples, he visits the first temple where he finds that the number of flowers in his basket increases to double the number as soon as he sets his foot inside the temple. Astonished by the miracle he is completely happy and seeks it as a blessing of his god. He offers a few flowers to the stone idol of god and moves out.

Then he visits the second temple, where the same miracle happens again. The number of flowers in his basket again double up in number. With a smile on his face, he offers a few of flowers to the stone idol again and walks out after praying.

The moment he enters the third temple, the number of flowers increases to double again. Now he feels entirely blessed. He offers all the flowers at the feet of the stone idol and walks out in a moment of bliss.

When he walks out, he has no remaining flowers with him. He offered equal number of flowers at each of the temple. What is the minimum number of flowers he had before entering the first temple? How many flowers did he offer at each temple?
category : LOGIC

Mind Teasers : 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?

Mind Teasers : Birbal Brain Teaser

Difficulty Popularity

Birbal is a witty trader who trade of a mystical fruit grown far in north. He travels from one place to another with three sacks which can hold 30 fruits each. None of the sack can hold more than 30 fruits. On his way, he has to pass through thirty check points and at each check point, he has to give one fruit for each sack to the authorities.

How many mystical fruits remain after he goes through all the thirty check points?

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