What is wrong in the below Picture?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

What is at the end of a rainbow?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

Why do Chinese men eat more rice than Japanese men do ?

What's a single-digit number with no value?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?