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 ?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

I have no life, but I can die. What am I?

The answer I give is yes, but what I mean is no. What was the question?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

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

John was a very careless driver, so his owner Jacob gave him an offer that he will get an incentive of Rs.30 for every bottle box he delivered without breaking it and he will be charged Rs.90 for every bottle box he broke. Jacob gave John 100 bottles-box to deliver. After delivery, Jacob paid John Rs.2400. How many bottles-box did John break?

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

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?