• Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Math Problem For High School

Difficulty Popularity

It was raining and a water drop accumulated itself over a leaf. It fell down to another leaf and lost 1/4th of its volume. It then fell off to another leaf losing 1/5th of its volume. After that it fell to another leaf losing 1/6th of its volume. This was process was repeated again and again till the water drop reached the last leaf and lost 1/75th of its volume.

Seeking the facts given in the question, will you be able to determine the accurate percentage of loss in the volume of the water drop when it is on the last leaf from its initial volume?

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

Mind Teasers : Classic Barber Brain Teaser

Difficulty Popularity

There are two barber shop in a small town – one located in the eastern market and the other on the northern market. The shop in the eastern market is quite untidy and the barber has a shabby haircut. While the shop in the northern market is quite neat and clean and the barber is sporting an excellent haircut himself.

Which of the two shops will any foreign visitor opt for?

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

Mind Teasers : Brain Twister For Kids

Difficulty Popularity

A clever robber breaks into a closed bank where he finds a clerk. He asks password of the safe from the clerk while pointing a gun on his forehead. Out of fear, the clerk manages to blurt out, “Every day, the password of the safe is changed. I can help you but please point away the gun as if you kill me, you will never be able to crack the password.

The robber ties the clerk on a chair and insert a cloth in his mouth. He then easily opens the safe after inserting the code and takes all the money before he flees.

How did he know the password ?

  • 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'.

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

Mind Teasers : Trick Interesting Maths puzzle

Difficulty Popularity

There are three cars in a racing track. The track is made forming a perfect circle and is quite wide so that at one time, multiple cars can pass through it. The car which is leading is driving at 55 MPH and the slowest car is driving at 45 MPH. The car that is in middle of these two is driving in between the two speeds. For the time being you can say that the distance between the fastest car and the middle car is x miles and it is same between the middle car and the slowest car. Also, x is not equal to 0 or 1.

The car keeps running till the leading car catches up with the slowest car and then every car stops. Given the case, do you think that at any point, the distance between any two pairs will again become x miles?

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

Mind Teasers : Logical Murder Puzzle

Difficulty Popularity

Four kids having five rocks each were playing a game in which they need to throw the rock at solid area in the water.

Kid1: Succeeded in throwing three rocks at solid area but one of the rock sunk.

Kid3: His aim was so bad that all rocks got sunk.

Kid4: He was awesome and none of the rocks got sunk.

Kid2 was the winner but was struck by a rock in the head and died.

Who killed Kid2 ?

  • 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 : 80k+
  • Sol Viewed : 20k+

Mind Teasers : Logical Bank Brain Teaser

Difficulty Popularity

A bank customer had Rs.100 in his account. He then made 6 withdrawals, totaling Rs.. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
Rs.50 Rs.50
Rs.25 Rs.25
Rs.10 Rs.15
Rs.8 Rs.7
Rs.5 Rs.2
Rs.2 Rs.0
Rs.100 Rs.99

Why are the Totals not exactly right ?

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

Mind Teasers : Trick Missing Pound Riddle

Difficulty Popularity

I am a book lover and i saw a book for Pound 97.
I am short of money , so i borrowed Pound 50 from my sister and 50 from my brother = Pound 100.
I bought the book, and had Pound 3 change. I gave brother Pound 1 and my sister Pound 1 and kept the other Pound 1 for myself. Now I owe my mum Pound 49 and my brother Pound 49. 49+49 = 98 + my Pound 1 = 99.

Where is the missing Pound ?

  • 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 ?

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

Mind Teasers : Shortest Who Am I

Difficulty Popularity

Who am I?

Submit your Email Address to get latest post directly to your inbox.

Latest Puzzles

26 October
Talking Parrot And Clever Shopkeeper Riddle

Aakriti went to Paris for her holidays w...

25 October
4 Two's Biggest Number

What is the biggest number that can be f...

24 October
Count The Queue Riddle

Rohini is standing in a queue in which h...

23 October
Classic What Am I

I got many teeth, but I don't bite.Who A...

22 October
Frequent Maths Digit Brain Teaser

Can you identify the most common digit b...

21 October
Color Of Stairs Brain Teaser

I live in a one story house made up of r...

20 October
Make Equation True MatchStick Puzzle

Can you move one matchstick to make belo...

Puzzles Tags :

Illusions Tags :