Mind Teasers : Hard Probability Puzzle

Difficulty Popularity

A primitive village follows a strange custom. They have babies only to have a boy. Whenever a boy is born in a family, they stop having babies and whenever a girl is born, they have a baby again and again till a boy is born.

The probability of having a boy is same as the probability of having a girl. What will be the proportion of boys to girls in the village after some time?

Suggestions

Mind Teasers : Changed Password Trick Teaser

Difficulty Popularity

On a random day , i was not able to logged-in with my bank password , so i contacted them on phone.
Our conversation is stated as :

myself : My password is altered.
myself : I am not able to logged-in.
customer-executive : Your password is distinct this time and it got 8 letters , out of which 2 are same of your previous password.
myself: Thanks , now i am able to logged-in.

Whats my old and new passwords ?
category : LOGIC | TRICK

Mind Teasers : Dollar * 4 = Quarter Equation Riddle

Difficulty Popularity

A quarter is 1/4th of a dollar but Professor Mr.GPuzzles has reversed the equation as below :

DOLLAR * 4 = QUARTER

You need to replace each alphabet by a number to decipher the logic used by Professor to make above equation true.
category : MATHS | EQUATION

Mind Teasers : Red | Blue | White Logical Riddle

Difficulty Popularity

At a restaurant downtown, Mr. Red, Mr. Blue, and Mr. White meet for lunch. Under their coats they are wearing either a red, blue, or white shirt.Mr. Blue says, 'Hey, did you notice we are all wearing different colored shirts from our names?' The man wearing the white shirt says, 'Wow, Mr. Blue, that's right!'
Can you tell who is wearing what color shirt?
category : LOGIC

Mind Teasers : One Move Chess Puzzle

Difficulty Popularity

Can you win this chess game in one move.

* You are playing with white and its ur turn

category : LOGIC

Mind Teasers : What Do you See - Brick Optical Illusion Riddle

Difficulty Popularity

What except brick can you see in the picture below?

category : PICTURE

Mind Teasers : Fun With Maths - Pool Table Puzzle

Difficulty Popularity

Can you make the below equation true by placing three correct balls in the picture below?

Mind Teasers : Classic Card Brain Teaser

Difficulty Popularity

A pack of cards has 52 cards. You are blindfolded. Out of 52, 42 cards are facing down while 10 are facing up. You have been asked to divide this pack of cards into two decks - so that each deck contains an equal number of face up cards. Remember, you are blindfolded.

How will you do it?
category : LOGIC

Mind Teasers : Toughest Number Series Question

Difficulty Popularity

Solve the number series by identifying the last number.

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

Mind Teasers : 4 + 9 != 13

Difficulty Popularity

If the following is true, can you find the value of (4 + 9)?

7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9
category : LOGIC | SERIES

Mind Teasers : Popular Interview Problem

Difficulty Popularity

I have two rectangular bars.

They have property such that when you light the fire from one end , it will take exactly 60 seconds to get completely burn.
However they do not burn at consistent speed (i.e it might be possible that 40 percent burn in 55 seconds and next 60 percent can burn in 10 seconds).

Problem is : How do you measure 45 seconds ?

Submit your Email Address to get latest post directly to your inbox.

Latest Puzzles

03 April
Minimum Move Chess Game Video Riddle

Can you figure out the minimum number of...

02 April
A numeric lock has 3 digit key Riddle

A numeric lock has 3 digit code with the...

01 April
What's wrong in the kitchen picture

What appears to be wrong in the kitchen ...

31 March
Who Is the Mother Picture Riddle

Can you find the mother of the baby in t...

30 March
Lighter Than Air Riddle

I'm lighter than air but a thousand men ...

29 March
3 Tigers 3 Sheep Riddle

If 3 tigers catch 3 sheep in 3 minutes. ...

28 March
Cow Rebus

Decode the below cow rebus....

Puzzles Tags :

Illusions Tags :