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 ?

Solve the following series:
AZ, GT, MN, __, YB

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

What is black when you buy it, red when you use it, and gray when you throw it away?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

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 ?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

What does this rebus riddle means ?