Mind Teasers : Tough Clock Problem

Difficulty Popularity

An observation is made on a clock and it is found that the hour hand is placed exactly at the minute mark while the minute hand is six minutes ahead it. After some time, the clock is observed again and it is found that the hour hand is exactly on another minute mark while the minute hand is seven minutes ahead of it.

Analyzing this data, can you calculate the total time that has elapsed between the two observations?
category : MATHS

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Mind Teasers : Famous Probability Puzzle

Difficulty Popularity

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 : Tricky Maths Riddle

Difficulty Popularity

Hockey Stick and ball cost $50. If the Stick cost $49 more than the ball.

what is the cost of each ?

Mind Teasers : Math Picture Brain Teaser

Difficulty Popularity

In the photo attached with this question, you have to place the numbers from 1 to 19 in the circles such that if we add up any side of the triangle, the sum is 17.

Mind Teasers : Tricky Glass Riddle

Difficulty Popularity

Six identical glasses are in a row.
The first three glasses are filled with juice, and the last three glasses are empty.
By moving only one glass, can you arrange them so that the full and the empty glasses are alternate?
category : LOGIC

Mind Teasers : What word am I ?

Difficulty Popularity

What word am I?

Insights:

* I am a nine letter word.

* I am the exact inverse to expression 'neighborly and active'

* I contain the word 'over'.

* I begin will a vowel.
category : WHAT AM I

Mind Teasers : 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

Mind Teasers : How Many Siblings Family Puzzle

Difficulty Popularity

In a particular family, each boy has as many brothers as the sisters, but each girl has twice as many brothers as that of sisters.

How many numbers of siblings are there in the family?
category : LOGIC | MATHS

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 : Math Brain Teaser High School

Difficulty Popularity

There are two natural numbers whose sum is less than hundred and both of them are greater than one. Two friends Leena and Nadia knows the product and sum of the numbers respectively.

Both of them are exchanging the following statements:

Leena: I don’t know the numbers.
Nadia: "I knew you wouldn't be. I am not aware myself."
Leena: "Now I am sure I know the numbers!"
Nadia: "Now I am sure I know the numbers too!"

Can you find the two numbers?
category : LOGIC | MATHS

Mind Teasers : Cool Equation Riddle

Difficulty Popularity

If 1 + 9 + 11 = 1, Then what is the value of

12 + 11 + 9 = ?

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