By Admin
  • Views : 80k+
  • Sol Viewed : 20k+

Mind Teasers : Amazing Numbers Puzzle

Difficulty Popularity

Using the numbers 1 to 9, achieve a sum total of 100. The conditions being, you may only use addition as the operation. Also, feel free to combine two digits such as 1,2, to make 12 or 21. To help you even more, you may even use fractions. (example : take 1, 2 to make 1/2).

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  • Views : 50k+
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Mind Teasers : Math Number Riddle

Difficulty Popularity

A man wanted to get into his work building, but he had forgotten his code. However, he did remember five clues. These are what those clues were:

The fifth number plus the third number equals fourteen.

The fourth number is one more than the second number.

The first number is one less than twice the second number.

The second number plus the third number equals ten.

The sum of all five numbers is 30.

What were the five numbers and in what order?

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

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?

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

Mind Teasers : Hard Logic Statement Riddle

Difficulty Popularity

There are a hundred statements.
1st person says: At least one of the statements is incorrect.
2nd person says: At least two of the statements is incorrect.
3rd person says: At least three of the statements are incorrect.
4th person says: At least four of the statements are incorrect.
..
..
..
100th person says: At least a hundred of the statements are incorrect.

Now analyze all the statements and find out how many of them are incorrect and how many are true?

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

Mind Teasers : Fake Coin Brain Teaser

Difficulty Popularity

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

  • Views : 90k+
  • Sol Viewed : 30k+

Mind Teasers : Popular Interview Problem

Difficulty Popularity

I have two rectangular bars.

They have property such that when you light the fire from one end , it will take exactly 60 seconds to get completely burn.
However they do not burn at consistent speed (i.e it might be possible that 40 percent burn in 55 seconds and next 60 percent can burn in 10 seconds).

Problem is : How do you measure 45 seconds ?

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

Mind Teasers : Playing Cards Puzzle

Difficulty Popularity

I purchased five decks of card from the market and mixed them.
Now i have ( 5 * 52 = 260 cards).

What is minimum number of cards, i need to take out from the above 260 cards to guarantee at least one 'four of a kind'.

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

Mind Teasers : Pizza Cost Math Brain Teaser

Difficulty Popularity

Jasmine, Thibault, and Noah were having a night out and decided to order a pizza for $10. It turned out that Jasmine and Thibault were hungrier than Noah. They both ate 6 slices a piece, and Noah got to eat just 2 slices.

Now they want to do a fair split of money. The problem is that none of them have coins with them. Thus, they want to round off the cost to nearest dollar.

What will be the correct way to do it?

What if the pizza's cost was $11?

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

Mind Teasers : Changed Password Trick Teaser

Difficulty Popularity

On a random day , i was not able to logged-in with my bank password , so i contacted them on phone.
Our conversation is stated as :

myself : My password is altered.
myself : I am not able to logged-in.
customer-executive : Your password is distinct this time and it got 8 letters , out of which 2 are same of your previous password.
myself: Thanks , now i am able to logged-in.

Whats my old and new passwords ?

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

Mind Teasers : Hardest Chess Problem

Difficulty Popularity

This is a classic chess puzzle and considered to be one of the hardest puzzles in history.
As shown in the picture below, White army is arranged in a classic chess board. You need to add black army i.e
1 king
1 queen
2 rooks
2 bishops
2 knights
8 pawns
in such a way that not a single piece of either color is under attack.

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

Mind Teasers : Logical Arrangement Bonfire Puzzle

Difficulty Popularity

30 classmates went for a bonfire. While sitting around the fire, they decided to play a game. To play it, they divided themselves into 5 teams in a way that there were 5 rows having 7 people each.

How can this arrangement be possible while sitting around the bonfire?

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