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Mind Teasers : Teaser Maths Riddle

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How many times can you subtract 10 from 100?

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Mind Teasers : Induction Brain Teasers

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Three college toppers are summoned by the inspecting faculty. To identify the best from them, the faculty takes them into a room and places one hat on each of their heads. Now all of them can see the hats on other’s heads but can’t see his own. There are two colored hats – green and red.

Now the faculty announces that he had made sure that the competition is extremely fair to all three of them. He also gives them a hint that at least one of them is wearing a red hat. Now the first one who is able to deduce his own hat color will be awarded the most intelligent student of all award. After a few minutes, one of them raises his hand and is able to deduce the color correctly.

How?

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Mind Teasers : Weight Balance Riddle

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You can place weights on both side of weighing balance and you need to measure all weights between 1 and 1000. For example if you have weights 1 and 3,now you can measure 1,3 and 4 like earlier case, and also you can measure 2,by placing 3 on one side and 1 on the side which contain the substance to be weighed. So question again is how many minimum weights and of what denominations you need to measure all weights from 1kg to 1000kg.

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Mind Teasers : Trick Gift Brain Teaser

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Cindy opened twenty five presents.
Duke opened five presents.
John opened fifteen presents.

Judging by the statements, can you decipher how many presents will be opened by Rhea?

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Mind Teasers : Ias Logic Question

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A guy claims to do the following thing. He puts a coin in a glass bottle. Then, he shuts the mouth of the bottle with the help of a cork. Now he manages to remove the coin out from the bottle without taking out the cork or breaking the glass bottle.

Do you know how he can do it?

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Mind Teasers : Dirt Hole Tricky Riddle

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How many cubic meters of dirt are in a hole of 20 meter long and 30 meter wide.

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Mind Teasers : Box Ball Logic Problem

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There are three bags.The first bag has two blue rocks. The second bag has two red rocks. The third bag has a blue and a red rock. All bags are labeled but all labels are wrong.You are allowed to open one bag, pick one rock at random, see its color and put it back into the bag, without seeing the color of the other rock.

How many such operations are necessary to correctly label the bags ?

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Mind Teasers : Math Picture Brain Teaser

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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.

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Mind Teasers : Maths Equation Brain Teaser

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Arrange four eights(9) and a one(1) and only one mathematical symbol to make it equal to 100

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Mind Teasers : Picture Mind Teaser

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You are given with six marbles of three different colors. Arrange them in a manner that each one of them touches all four marbles of different colors.

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Mind Teasers : Shortest Who Am I

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Who am I?

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