20142014*20142014-20142013*20142015= ?

You were given nine same looking coins of which one is fake – weighs less. You can use
even arm balance. How do you find out which coin is fake in two scalings?

A man is found hanging in a room 3 feet off the ground.

There is nothing else in the room except for a large puddle of water on the ground.

The police can’t see any way the man could have climbed the walls to get to where he is hanging.

How did this man hang himself?

Solve the quickfire maths brain teaser √9% = ?

4150 6749 8163 3571 8466 9788

There is sequence of number and number is calulated based on these sequence:

8 : 6 : 7 : 1 = 8248

7 : 4 : 2 : 8 = 5886

5: 4 : 4 : 5 = 5615

Can you try to calulate number for following sequence:

6 : 9 : 2 : 6 = ????

Adam is one of the finalist in an IQ championship. As the final test, he is provided with two hourglass. One of them can measure eleven minutes while the other one can measure thirteen minutes.
He is asked to measure exactly fifteen minutes using those two hourglasses. How will he do it ?