Mind Teasers : Fun With Numbers Brain Teaser (Hard)

Difficulty Popularity

In how many ways can you make the number 100 using number 3 5 6 7 and any mathematical operators?

category : EQUATION

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Mind Teasers : Measure Water Supply Brain Teaser

Difficulty Popularity

You had an infinite supply of water and a 5 ml and 3 ml gallons.

How would you measure exactly 4 ml in least number of steps ?
category : LOGIC | MEASURE

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 : No Death Penalty For Kill Riddle

Difficulty Popularity

Ramsay was killed by Sansa in front of everyone but the judge was not sure how to punish Sansa. Why is the judge confused?
category : TRIVIA

Mind Teasers : Famous 13 Cave Logic Problem

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

Mind Teasers : Tricky Math Race Riddle

Difficulty Popularity

Rooney, Hernandez, and Robin race each other in a 100 meters race. All of them run at a constant speed throughout the race.

Rooney beats Hernandez by 20 meters.
Hernandez beats Robin by 20 meters.

How many meters does Rooney beat Robin by ?
category : LOGIC | MATHS

Mind Teasers : May The Fastest Car Win

Difficulty Popularity

John is out with his class of 25 boys to a local park. Each guy has a remote controlled car with them. The park has a racetrack that allows 5 cars to be raced at once. Their teacher, Mr. Ted, declares that the top three fastest cars get ice cream.

How many races are required to determine the 3 fastest cars?
category : LOGIC | MATHS

Mind Teasers : Logical Problem

Difficulty Popularity

Four stupid friends meet each other after long time.They are so stupid that they start talking about their suits

* There were a total of eight suits, two in each color, black, brown, pink and white.
* Each friend owned two suits.
* No friend had two suits of the same color.
* Ganpat don't have a white suit.
* Harish don't have a black suit, but did have a brown one.
* One of the friends had a white suit and a pink suit and another friend had a brown suit and a pink suit.
* Manoj had a white suit.
* Tarun had a pink suit, but don't have a brown one.

Can you work out which friend had which color suits?
category : LOGIC

Mind Teasers : Most Popular Logical Puzzle

Difficulty Popularity

Outside a room there are three light switches. One of switch is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb ??
category : LOGIC

Mind Teasers : Weight Balance Riddle

Difficulty Popularity

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.

Mind Teasers : Prime Number < 100 Puzzle

Difficulty Popularity

Can you list all the prime numbers than 100 which when divided by 5 leaves an odd remainder?
category : MATHS

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