It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

Can you count the number of lines in the below picture?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Which is the smallest number that you can write using all the vowels exactly once?

How many letters are in the alphabet?

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