A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

I have Rs.50 and I spend it in the way as below.

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?