• Views : 60k+
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Mind Teasers : Physics Brain Teaser

Difficulty Popularity

On a boat, there is a 15 inch brick of gold and a 15 inch brick of iron. If both of them are dropped into the water, which one of them will make the water level higher?

Discussion
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  • Views : 80k+
  • Sol Viewed : 20k+

Mind Teasers : Sunday Probability Riddle

Difficulty Popularity

Whats the probability of getting 5 Sunday(my favorite day) in a 31 day month ?

By Admin
  • Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Crack the code Riddle

Difficulty Popularity

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
-> Sum of 5th number and 3rd number is 14.
-> Difference of 4th and 2nd number is 1.
-> The 1st number is one less than twice the 2nd number.
->The 2nd number and the 3rd number equals 10.
->The sum of all digits is 30.

Crack the code ?

By Admin
  • Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Shortest Who Am I

Difficulty Popularity

Who am I?

  • Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Hard Ten Boxes Interview Puzzle

Difficulty Popularity

You have ten boxes and an electronic weighing machine. In those ten boxes, you have chocolates. Each chocolate weigh 20 grams. But in one box the chocolates are defective and each weigh 19 grams exactly.

Now you can weigh in the electronic weighing machine but you can use that machine just once. How will you find out which box has the defected chocolates.

  • Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Multiple Answers Problem

Difficulty Popularity

Can you solve the equation in the image below(at-least three different ways) by playing numbers 1 through 9 in the boxes so that all three equation are correct ?

By Admin
  • Views : 40k+
  • Sol Viewed : 10k+

Mind Teasers : Beer Cap Rebus Puzzle

Difficulty Popularity

What does below beer cap means?

  • Views : 50k+
  • Sol Viewed : 20k+

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.

By Admin
  • Views : 40k+
  • Sol Viewed : 10k+

Mind Teasers : CheckMate All Kings Chess Puzzle

Difficulty Popularity

Can you checkmate all the kings in less than 10 moves?

Following are the rules:
1. White can make up to 10 legitimate moves until all kings are checkmate.
2. You can take any black piece(s) except the King.
3. Your king cannot be in check position at any time of the game.




  • Views : 50k+
  • Sol Viewed : 20k+

Mind Teasers : Terrorist Attack Security Puzzle

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 ?

  • Views : 70k+
  • Sol Viewed : 20k+

Mind Teasers : Murder Mystery Puzzle

Difficulty Popularity

One evening there was a murder in the home of married couple, their son and daughter. One of these four people murdered one of the others. One of the members of the family witnessed the crime.

The other one helped the murderer.

These are the things we know for sure:

1. The witness and the one who helped the murderer were not of the same sex.

2. The oldest person and the witness were not of the same sex.

3. The youngest person and the victim were not of the same sex.

4. The one who helped the murderer was older than the victim.

5. The father was the oldest member of the family.

6. The murderer was not the youngest member of the family.

Who was the murderer?

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