Mind Teasers : How Many Triangles Challenge

Difficulty Popularity

You can find an attached picture with this puzzle. Can you find out how many triangles are formed in this figure?

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Mind Teasers : Tricky Maths Expression

Difficulty Popularity

By using the numbers 8,5 1 and 1 exactly once and with the help of basic operation (+, -, /, *), Can you form an expression with a value of 10?

Note: Parentheses are allowed
category : MATHS | EQUATION

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?
category : LOGIC | MATHS

Mind Teasers : Interview Balls Puzzle

Difficulty Popularity

In a closed jar, there are three strawberry candies, two mango candies and five pineapple candies. You can't see inside the jar. Now, how many toffees you must take out from the jar to make sure that you have one of each flavor?
category : LOGIC

Mind Teasers : Famous Send More Money Equation Puzzle

Difficulty Popularity

Below equation is one the most popular equation.Can you solve the below equation by replacing alphabet with a digit such that the equation holds as well?
    SEND
+ MORE
======
MONEY
category : MATHS | EQUATION

Mind Teasers : Terrorist Plane Hijack Puzzle

Difficulty Popularity

A terrorist hijacks a plane with 10 passengers and there is a lot of gold in the plane.
After taking all the gold, the terrorist asked the government officials for 11 parachutes.
He killed all the passenger so that no one can identify him , take one parachute and jumps off.

Was he stupid to ask for 11 parachutes if he need only one ?

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?
category : LOGIC

Mind Teasers : Famous Elevator Riddle

Difficulty Popularity

Tanu lives on the 13th floor takes the elevator down to the ground floor every morning and goes to her office.

In the evening, when she comes back on a rainy day , or if there are other people around in the elevator, she goes to her 13th floor directly. Otherwise, she goes to the 1oth floor and walks up three flights of stairs to his apartment.

Whats the reason for her unusual behavior ?
category : LOGIC | MYSTERY

Mind Teasers : 12 Sum Matchstick Brain Teaser

Difficulty Popularity

We have arranged matchsticks in a manner that all the first row, second row, first column and third column contain 12 matchsticks each. Can you remove 4 matchsticks and rearrange all the remaining matchsticks that we are still left with 12 matchsticks in the first row, second row, first column and the third column.


Mind Teasers : Three Magic Numbers Puzzle

Difficulty Popularity

Find three magic number such that ?

* Product of three numbers is prime.
* 2nd number - 1st number = 3rd number - 2nd number
category : LOGIC | MATHS

Mind Teasers : Popular Logic Picture Grid Problem

Difficulty Popularity

We have 4 blue, 4 red, 4 green and 4 yellow hats. All the hats must be labelled with an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’ in a manner that one sign is used on a particular color only once. Now these hats must be arranged in a 4x4 grid in a manner that no two rows or columns have a repeating color or sign.

To give you a kick start, we have arranged 4 hats in the grid. Can you place the rest of them ?

category : LOGIC | PICTURE

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