Decode this picture on T-Shirt and tell what it says ?

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 ?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

What number should come in place of the question mark below?

What is the largest number you can write with just 3 digits?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What is the difference between a jeweller and a jailer?

Five thieves looted a bank and they ran away in a car. The bank staff informed the police and they began the search of their car in their jeep. They found them on a road and chased them eventually catching them. The light that is used to fill the number plate was broken on the thieves' car. Also, the headlights of the jeep police were not working. How were the police able to catch the thieves then?

How can a man go eight days without sleep?