I am white when I am dirty, and black when I am clean. What am I?

what does this picture(rebus) riddle means ?

What does Alexander the Great and Winnie the Pooh have in common?

What is the coolest letter in the alphabet?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

What has lots of eyes, but can’t see?

What is the difference between a jeweller and a jailer?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?