The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

You can see three almost identical images below. Can you spot the odd one out from them?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

People make me, save me, change me, raise me. What am I?

How can you make number one disappear by adding something to it?

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?