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

Suggestions

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 : Best Picture Brain Teaser

Difficulty Popularity

Seeing the picture, can you identify in which direction is it going - left or right?

Keep in mind that the bus is moving in UK

Mind Teasers : Relation Sorcery Riddle

Difficulty Popularity

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 : Beer Cap Rebus Riddle

Difficulty Popularity

What does the beer cap say?

category : REBUS | PICTURE

Mind Teasers : Passcode Puzzle

Difficulty Popularity

Shruti's daughter Arshika need to be picked from the school every day.
Shruti asks one of her colleagues to pick her from school. Shruti devised a password mechanism to confirm that Arshika goes with the correct person only.
The password on Monday was SAM16.
The password on Wednesday was HRW39.

What will the password for Friday?


category : LOGIC | CIPHER

Mind Teasers : what will come in place of the question mark

Difficulty Popularity

1 3 5
2 4 ?

Do you know what will come in place of ?

We must tell you that its not 6.
category : LOGIC | TRICK

Mind Teasers : IAS Interview Problem

Difficulty Popularity

I need to divide numbers from 1 to 9 into two group such that sum of numbers in one group is equal to the sum of other group.
Note : 6 cannot be flipped over to make it 9.
category : LOGIC

Mind Teasers : Hard MatchStick Problem

Difficulty Popularity

You can see five identical squares made with blue matchsticks in the given figure. You have to make them six identical squares instead. To do that, you are only allowed to move three matchsticks. How will you achieve the desired result?

Mind Teasers : Numbers For Buildings Problem

Difficulty Popularity

My town contains 100 buildings.
They are numbered from 1 to 100. How many 6's are used in these numbers ?
category : LOGIC

Mind Teasers : Logic Problem Brain Teaser

Difficulty Popularity

The world is facing a serious viral infection. The government of various countries have issued every citizen two bottles. You as well have been given the same. Now one pill from each bottle is to be taken every day for a month to become immune to the virus. The problem is that if you take just one, or if you take two from the same bottle, you will die a painful death.

While using it, you hurriedly open the bottles and pour the tablets in your hand. Three tablets come down in your hand and you realize they look exactly the same and have same characteristics. You can’t throw away the pill as they are limited and you can’t put them back or you may put it wrong and may die someday.

How will you ensure that you are taking the right pill?
category : LOGIC

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