Difficulty Popularity

In 1967 Edward de Bono brings a creative approach where we need to use more reasoning and should think out of the box to solve problems as e traditional step by step approach is not good enough for some problems.

A classic such puzzle is :

As shown in the picture, there are three empty cups. Can you pour 10 sugar lumps on them so that every cup contains an odd number of sugar lumps?

A classic such puzzle is :

As shown in the picture, there are three empty cups. Can you pour 10 sugar lumps on them so that every cup contains an odd number of sugar lumps?

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Difficulty Popularity

UNO plans a gathering.

However there is threat of terrorist attack. So security guard who is a mathematical plans somethings to secure the place.

A terrorist stands nearby the door where

1st ambassador comes , the security guard said 'twelve' and ambassador replied with 'six'.

2nd ambassador comes , the security guard said 'six' and ambassador replied with 'three'.

The terrorist thinks its enough and walks to the door.

The security person said 'eight' , terrorist replied 'four' and get immediately arrested.

why ?

However there is threat of terrorist attack. So security guard who is a mathematical plans somethings to secure the place.

A terrorist stands nearby the door where

1st ambassador comes , the security guard said 'twelve' and ambassador replied with 'six'.

2nd ambassador comes , the security guard said 'six' and ambassador replied with 'three'.

The terrorist thinks its enough and walks to the door.

The security person said 'eight' , terrorist replied 'four' and get immediately arrested.

why ?

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?

How will you make sure that you are able to transport maximum amount of apples to the town?

Difficulty Popularity

You are given a set of scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weigh the same or that the dish that falls lower has heavier contents than the other.

The 12 marbles appear to be identical. In fact, 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more.

Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light.
**category** :
LOGIC

The 12 marbles appear to be identical. In fact, 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more.

Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light.

Difficulty Popularity

1 pound = 100 penny

= 10 penny x 10 penny

= 1/10 pound x 1/10 pound

= 1/100 pound

= 1 penny

=> 1 pound = 1 penny

Solve this math trick question ?

= 10 penny x 10 penny

= 1/10 pound x 1/10 pound

= 1/100 pound

= 1 penny

=> 1 pound = 1 penny

Solve this math trick question ?

Difficulty Popularity

A claustrophobic person boards a train that is just about to enter a tunnel.

Which place will be the best for him to sit?

Which place will be the best for him to sit?

Difficulty Popularity

If you were asked to pick nine toothpicks and make them ten without breaking any of them, how will you do it?

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

------

by replacing alphabets of words by a number so that the algebraic equation holds true?

BASE +

BALL

------

GAMES

------

Difficulty Popularity

Four kids having five rocks each were playing a game in which they need to throw the rock at solid area in the water.

Kid1: Succeeded in throwing three rocks at solid area but one of the rock sunk.

Kid3: His aim was so bad that all rocks got sunk.

Kid4: He was awesome and none of the rocks got sunk.

Kid2 was the winner but was struck by a rock in the head and died.

Who killed Kid2 ?

Kid1: Succeeded in throwing three rocks at solid area but one of the rock sunk.

Kid3: His aim was so bad that all rocks got sunk.

Kid4: He was awesome and none of the rocks got sunk.

Kid2 was the winner but was struck by a rock in the head and died.

Who killed Kid2 ?

Difficulty Popularity

A thief was running from the police after the biggest theft the town saw. He took his guard in one of the thirteen caves arranged in a circle. Each day, the thief moves either to the adjacent cave or stay in the same cave. Two cops goes there daily and have enough time to enter any two of the caves out of them.

How will the cop make sure to catch the thief in minimum number of days and what are the minimum number of days?
**category** :
LOGIC

How will the cop make sure to catch the thief in minimum number of days and what are the minimum number of days?

Difficulty Popularity

Armed robbers invaded a bank. They were busy looting when suddenly a phone rang. The phone happened to be at the reception. One of the robber asked the receptionist to attend the call and talk without giving away the situation. The call happen to be from her mother. She spoke, 'Do you have any emergency mom? Can you give me a call when I get home, I could really use your help in buying new curtains?' Then she hangs up.

The robbers are busy when the police arrives suddenly along with the mother of the receptionist. How did she know about the robbery?

The robbers are busy when the police arrives suddenly along with the mother of the receptionist. How did she know about the robbery?

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