• Views : 70k+
  • Sol Viewed : 20k+

Mind Teasers : Tricky Math Race Riddle

Difficulty Popularity

Rooney, Hernandez, and Robin race each other in a 100 meters race. All of them run at a constant speed throughout the race.

Rooney beats Hernandez by 20 meters.
Hernandez beats Robin by 20 meters.

How many meters does Rooney beat Robin by ?

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

Mind Teasers : Logical Problem Riddle

Difficulty Popularity

There is one apple tree near my home. In this apple trees, there are some apples.
But after a mild wind, there are neither apples on tree nor on ground.

Explain ?

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

Mind Teasers : Guard Door Riddle

Difficulty Popularity

You are in a strange place which is guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there.
What should you ask?

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

Mind Teasers : Awesome Clock Puzzle

Difficulty Popularity

Time 12:21 is a palindrome as it reads the same forwards or backwards.
Whats the Whats the shortest interval between two palindromic times ?

example => 11:11 and 12:21 has interval of 1 hr 10 minutes.

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

Mind Teasers : Simple Logical Riddle

Difficulty Popularity

prinka socks rack has 11 pink socks, 12 red socks , 13 orange socks, and 14 white socks,15 brown socks.
how many socks would she have to pull out in the dark to be sure she got a matching pair ?

  • 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?

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

Mind Teasers : Hard Logic Puzzle

Difficulty Popularity

A great meeting is held by a great logician where all the other logicians are called upon. The master logician takes them in a room and makes them sit in circle. A hat is placed on each of their heads. Now all of them can see the color of hats others are wearing but can’t see his own. They are told that there different colors of hats.

The master logician explains that a bell will be rung at regular intervals and the moment when a logician knows the color of his hat, he will leave on the next bell. If anyone leaves at the wrong bell, he will be disqualified and sent home.

All of them are assured of one thing that the puzzle will not be impossible for anyone of them. How will they manage the situation?

  • 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 : 90k+
  • Sol Viewed : 30k+

Mind Teasers : Extremely Hard Civil Services Problem

Difficulty Popularity

( ) + ( ) + ( ) + ( ) + ( ) = 30
This is what you have for equation. The following are the numbers that you can use to fill in the brackets:
1, 3, 5, 7, 9, 11, 13 and 15

You can repeat the numbers if required. The resulting sum should be 30.

This question appeared in the UPSC final examination in December 2013. Out of all the people who appeared, only one guy was able to solve this namely Gaurav Agarwal.

Can you solve it?

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

Mind Teasers : Logic Birthday Puzzle

Difficulty Popularity

For my anniversary, I decided to surprise my wife. Since she is a voracious reader, I decided to collect a lot of books for her. On the first day of the month, I bought one book, on the second, I bought two and on the third, I bought three. This process went on till the anniversary and on the day, I had 276 books with me to gift her.

Can you calculate, on which day is our anniversary?

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

Mind Teasers : Tricky Password Mystery Problem

Difficulty Popularity

A brother wants to use his brother's desktop computer. When he opens it, he finds out that it is password protected. Now, he clicks on the hint and the following appears in front of him:

1 Jug 2 Birthdays 3 Fights 4 Cars 2 Laptops 1 Watch

He is left confused entirely. He has no clue. Can you help him with the password?

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