• Views : 30k+
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Mind Teasers : Union Intersection Math Problem

Difficulty Popularity

In a college, 70 percent of students study math, 75 percent of students study English, 85 percent study French and 80 percent study German.

Can you find out the percentage of students who study all 4 subjects ?

Discussion
Suggestions
  • Views : 60k+
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Mind Teasers : Unique Brain Teaser

Difficulty Popularity

It takes ten minutes to fry a steak (five minutes for each side). You are frying the steaks in a pan that can accommodate only two steaks at one time. What is the least amount of time by which you can fry all the three steaks you have?

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

Mind Teasers : Matchsticks Relationship Puzzle - Know Your Alphabets

Difficulty Popularity

What is the relationship between these matchsticks figures below?

Hint: You must know your alphabets.

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

Mind Teasers : Maths Cube Riddle

Difficulty Popularity

You have two cubes with plane faces. You have to mark both the cubes with numbers in a manner that all the days of a month can be portrayed using those cubes. Also, note that you have to use both the cubes for displaying any date. Suppose if you have to display the 5th day of the month, you will have to display it as 05.

Can you do it?

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

Mind Teasers : Interesting Bet Puzzle

Difficulty Popularity

In a bowl, there are several chits with distinct numbers on them. You have to choose any two of them at random.

Will you accept the 2 to 1 bet that the numbers will be relatively prime will you accept it?

For instance:
If the numbers you pick are 6 and 13, you lose $1.
If the numbers you pick are 5 and 25, you win $2.

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

Mind Teasers : Tricky Logical Puzzle

Difficulty Popularity

There are two arch enemy Dhuryodhan and Bheem.
One day two are going together and a god appeared in from of them.
The God grant three wishes to Bheem and one to Dhuryodhan.

Dhuryodhan replied smartly 'Give me twice of whatever Bheem ask for'.

For 1st wish Bheem asked the god 'Give me a room full of money'. Soon Dhuryodhan gets two room full of money.
For 2nd wish Bheem asked the god 'give me 100 slaves'. Soon Dhuryodhan gets 200 slaves.

Whats should be Bheem third wish ?

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

Mind Teasers : The sheep and the grass logical puzzle

Difficulty Popularity

If we tie a sheep to one peg, a circled grass is been eaten by the sheep. If we tie the sheep to two pegs with a circle on its neck, then an eclipse is eaten out of the grass by the sheep. If we want an eclipse then we put two pegs then put a rope in between then and the other end of the rope is tied up on the sheep's neck.

Question: how should we tie the peg and the sheep so that a square is eaten out from the garden's grass? We only have one sheep's rope and the peg and the rings.

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

Mind Teasers : The Hundred Number Puzzle

Difficulty Popularity

We can create number 100 by using all numbers, i.e.0123456789 and mathematical operators (+/-) in many ways.
Example
98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition that the use of the number 21 is the must. Then there are only a few solutions.

One of such solution is:
98 - 7 - 6 - 5 - 4 + 3 + 21 = 100

Can you tell any other solution?

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

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?

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

Mind Teasers : What Is It six letter word. Riddle

Difficulty Popularity

It's a six letter word.
The first four letter is me.
The second and last letter are the same.
The fourth second and last letter are payment.

What Is It ?

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

Mind Teasers : Popular Dice Probability Riddle

Difficulty Popularity

You roll two six sided dices together.

Can you calculate the probability that the first dice gives the number 2 while the second dice gives the number 5?

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