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

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

What time is it when an elephant sits on a fence?

Who always enjoys poor health?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

When 99 is considered higher than 100?

Which city is three-fifths chick two third cat and 50% goat?