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?

Suggestions

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 : Oscar Winning Movie Rebus Riddle

Difficulty Popularity

Which famous Oscar movie name is hidden in the rebus below?

category : REBUS | PICTURE

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 : Math Brain Teaser High School

Difficulty Popularity

There are two natural numbers whose sum is less than hundred and both of them are greater than one. Two friends Leena and Nadia knows the product and sum of the numbers respectively.

Both of them are exchanging the following statements:

Leena: I don’t know the numbers.
Nadia: "I knew you wouldn't be. I am not aware myself."
Leena: "Now I am sure I know the numbers!"
Nadia: "Now I am sure I know the numbers too!"

Can you find the two numbers?
category : LOGIC | MATHS

Mind Teasers : What Do you See - Brick Optical Illusion Riddle

Difficulty Popularity

What except brick can you see in the picture below?

category : PICTURE

Mind Teasers : Logic Interview Riddle

Difficulty Popularity

prinka and tanu organized a small kitty party at home. They purchased a barrel of fruit juice.

Tanu told to prinka 'I bet this barrel of fruit juice is more than half full'.
'No, its less than half full' prinka replied.

I don't have any measuring instrument and without removing fruit juice from it , how can i determine which of us is right ?
category : LOGIC

Mind Teasers : Worlds Hardest Brain Teaser

Difficulty Popularity

A mastermind organized a quiz competition in which six selected candidates were invite namely James Hunt, Ruxandra Bar, Sophia Connors, David Finch, Fred Odea and Brian Miller. A 'special puzzle' was asked to all of them. The first one to answer it was promised for a big award.

After that, the candidates were offered the meal before the mastermind stood up to announce the much awaited result. He started announcing:

'Ok now everybody!'
'The winner of…..'
'The Hardest Riddle Ever Event.'

And then he smiled. All the candidates understood who won.

Do you know who won ?
category : LOGIC | TRICK

Mind Teasers : Three Magic Numbers Puzzle

Difficulty Popularity

Find three magic number such that ?

* Product of three numbers is prime.
* 2nd number - 1st number = 3rd number - 2nd number
category : LOGIC | MATHS

Mind Teasers : Decipher MatchSticks Puzzle

Difficulty Popularity

Can you decipher the two rows to find the hidden word?

Mind Teasers : Unsolvable Problem

Difficulty Popularity

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly
category : LOGIC | RIDDLE

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