Mind Teasers : Tough Number Problem Riddle

Difficulty Popularity

Find smallest number that you can write using all the vowels(A,E,O,I,U) exactly once?
category : LOGIC | MATHS

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Mind Teasers : Logic Coins Puzzle

Difficulty Popularity

Assuming i have an infinite supply of coins.

What is the fewest number of coins would be required in order to make sure each and every coin touched exactly three other coins.

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 ?

Mind Teasers : Pizza Cost Math Brain Teaser

Difficulty Popularity

Jasmine, Thibault, and Noah were having a night out and decided to order a pizza for $10. It turned out that Jasmine and Thibault were hungrier than Noah. They both ate 6 slices a piece, and Noah got to eat just 2 slices.

Now they want to do a fair split of money. The problem is that none of them have coins with them. Thus, they want to round off the cost to nearest dollar.

What will be the correct way to do it?

What if the pizza's cost was $11?
category : LOGIC | MATHS

Mind Teasers : Shortest Who Am I

Difficulty Popularity

Who am I?

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 : Decrypt Password Riddle

Difficulty Popularity

A person has uncovered a secret that was a mystery for ages. He transfers the data into his hard drive and encrypts the drive with a password. Then, he writes a line on a paper to remember the password.

The line says 'You force heaven to be empty'.

Can you decrypt the line to reveal the password if you know that the password is seven characters long that comprise of just letters and numbers?
category : LOGIC | CIPHER

Mind Teasers : Eden Hazard And The Two Masked People Puzzle

Difficulty Popularity

Eden Hazard the famous Chelsea footballer leave home and then he makes three left turns and returns home where he found 2 people wearing the mask.

Can you Identify the two masked people?
category : LOGIC | TRICK

Mind Teasers : Base Ball Games Cryptarithmetic Riddle

Difficulty Popularity

Can you solve the below cryptarithmetic riddle
by replacing alphabets of words by a number so that the algebraic equation holds true?

BASE +
BALL
------
GAMES
------
category : MATHS | EQUATION

Mind Teasers : Logical Interview Problem

Difficulty Popularity

Jonathan has three boxes containing milk chocolates and dark chocolates. The problem is that all of them have been labeled incorrectly as follows.
Box1: Dark Chocolates
Box2: Milk Chocolates
Box3: Dark Chocolates and Milk Chocolates

How will he label all the boxes correctly by just opening one box?
category : LOGIC

Mind Teasers : Maths Magic - Square Root 12345678987654321 Brain Teaseer

Difficulty Popularity

We all know that square root of number 121 is 11.
But do you know what si the square root of the number "12345678987654321" ?
category : LOGIC | MATHS

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