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Lie Detector Probability Question

April 12, 2021 by Ankur 4 Comments

Scientists were trying out a new lie detection test based on a needle. The needle indicates red if it a lie and green if it’s true. For any person lying, there is a 75% chance of the needle pointing towards red. For a person not lying, there is a 90% chance of the needle pointing towards green. It is known that 10% of people who go for the test are lying.

If a person who tests to have lied, If the probability that they actually lied is P, then 11P equals?​

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Battleship Puzzle

February 12, 2021 by Ankur 1 Comment

Six different-sized ships (shown at the top) are hidden on the grid. Numbers show how many ship squares (parts of ships) are in that row or column. Ships can’t touch, not even diagonally. The blue square is water. Can you find where the ships belong?

From lukerissacher.com/battleships

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Number Puzzle #59

September 6, 2013 by Ankur 1 Comment

Find the answer in the image below

number puzzle 59

number puzzle 59


Check your answer:-

Tried enough already?
See ExplanationHide Explanation
Answer is 14.
How?
Actually its nothing but number of squares in the image, in the first image there are 5 squares and in the second there are 14 squares. thus the answer will be 14.

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Number Puzzle #5

January 19, 2013 by Ankur 4 Comments

 

If, 1 = 5 2 = 25 3 = 325 4 = 4325 Then, 5=..... ?

If,
1 = 5
2 = 25
3 = 325
4 = 4325
Then, 5=….. ?

See AnswerHide Answer

Answer with Explanation

Answer is 54325
How?
Just keep appending the new number to the previous answer 🙂

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Number Puzzle #4

January 15, 2013 by Ankur 2 Comments

 

6 - 1 x 0 + 2 / 2 = ?

6 – 1 x 0 + 2 / 2 = ?

See AnswerHide Answer

Answer with Explanation

Given
6 – 1 x 0 + 2 / 2
= 6 – 0 + 1
= 7

So answer to above number puzzle is 7

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Many many keys I have, but no door I unlock

October 10, 2012 by Ankur 2 Comments

Many many keys I have, but no door I unlock.
Four strong legs and enchanting voice,
Yet I never run or talk.
What am I?

Tried enough already?

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At a recent family reunion, the family consisted of

October 10, 2012 by Ankur 1 Comment

At a recent family reunion, the family consisted of
1 grandfather, 1 grandmother, 2 fathers, 2 mothers, 4 children,
3 grandchildren, 1 brother, 2 sisters, 2 sons, 2 daughters,
1 father-in-law, 1 mother-in-law, and 1 daughter-in-law.
How many minimum no. of people at the reunion?

Tried enough already?

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Find Hidden People – 30 Awesome Optical Illusions

September 15, 2012 by Ankur Leave a Comment

Find hidden people, objects in these images… at first they may look different, but you will need to search and look differently for hidden people, animals or objects.

1.) Human face and hand made of human bodies
Find Hidden People Illusion 1

[Read more…]

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Top 16 Impossible Objects Optical Illusions

September 13, 2012 by Ankur 1 Comment

These are some impossible objects illusion, you will keep thinking how can it be possible!

 

Impossible Object Illusion 1

[Read more…]

Checkout more Picture Puzzles Tags: Optical Illusion, Solved Puzzles

Top 10 Moving Objects Optical Illusions

September 10, 2012 by Ankur Leave a Comment

Can you see a still image ?

Moving Optical Illusions 1

Your eyes and brain are confused, you cant see the still image, right ?

[Read more…]

Checkout more Picture Puzzles Tags: Optical Illusion, Solved Puzzles

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