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

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Mind Teasers : Famous Priest Well Puzzle

Difficulty Popularity

An old priest fell on a bottom of the well of a church.
The well is 20 inches deep.

At day time, the old priest climbs 5-inches but when at dark he slip back 4 inches.
In how many days priest will come out of the well ?

Mind Teasers : Extremely Hard Civil Services Problem

Difficulty Popularity

( ) + ( ) + ( ) + ( ) + ( ) = 30
This is what you have for equation. The following are the numbers that you can use to fill in the brackets:
1, 3, 5, 7, 9, 11, 13 and 15

You can repeat the numbers if required. The resulting sum should be 30.

This question appeared in the UPSC final examination in December 2013. Out of all the people who appeared, only one guy was able to solve this namely Gaurav Agarwal.

Can you solve it?

Mind Teasers : Smart Math Logic Brain Teaser

Difficulty Popularity

You trade apples from a village to your town. The distance is 1000 miles. This time you were able to get your hands on 3000 apples. You have a truck that can carry just 1000 apples at one time. At every mile is located a check post at which you have to submit 1 apple while going to the town. However, when you travel from town to village, you don’t have to give anything.

How will you make sure that you are able to transport maximum amount of apples to the town?
category : LOGIC | MATHS

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 : Cross The River Mind Teaser

Difficulty Popularity

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?
category : LOGIC

Mind Teasers : Smart Trick Puzzle

Difficulty Popularity

A local magician is performing his favorite trick to be under water for approx 10 minutes.

I went to the magician and told him that i can be under the water for 20 minutes.
He laughed and den responded "I will give you 1000 pounds , if you can do this"

I won the bet and get 1000 pounds.

what did i do ?
category : LOGIC | TRICK

Mind Teasers : Smart Trick Teaser

Difficulty Popularity

Five girls were seen struggling while trying to get under the same small umbrella and yet, all five of them managed to remain dry completely?

How can it be true?
category : LOGIC | TRICK

Mind Teasers : Intel Logical Interview Problem

Difficulty Popularity

Chanu bought an ice cream cone having 5 different flavor scoop.
The five flavors in random order are Jamaica, nutty-chocolate, peppermint, walnut and orange

These are some hints to help identify the puzzled reader to determine the order of flavor from top to bottom.
1. The bottom flavor of the cone has 7 letters.
2. The walnut scoop is at between Jamaica and the nutty-chocolate scoop.
3. walnut is above the orange scoop but below the nutty-chocolate scoop.

So can you figure out the flavor of ice cream in order from top to bottom?

category : LOGIC

Mind Teasers : Logical Bank Brain Teaser

Difficulty Popularity

A bank customer had Rs.100 in his account. He then made 6 withdrawals, totaling Rs.. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
Rs.50 Rs.50
Rs.25 Rs.25
Rs.10 Rs.15
Rs.8 Rs.7
Rs.5 Rs.2
Rs.2 Rs.0
Rs.100 Rs.99


Why are the Totals not exactly right ?
category : LOGIC | MATHS

Mind Teasers : Indian Jones And The Cellular jail (Kala Pani) Treasure Riddle

Difficulty Popularity

Indian jones went to Andaman(India) for the holiday where he came to know that there is a big treasure hidden here. The Map of the treasure is hidden somewhere in the cellular jail.
The Map location is hidden in the cipher below.

"roolF mooR gnignaH ehT edisnI neddiH sI paM erusaerT"

What is the map location?


category : LOGIC | CIPHER

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