I have eight fingers and two thumbs but I do not live. What Am I?

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?

Ten coins have been arranged as you can see in the given picture. In this arrangement, a triangle is formed pointing upwards. You have to invert the position of the triangle and make it point downwards while changing the position of 3 coins only. Can you do it?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
=========

What is wrong in the below Picture?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Why do you find that most of the buildings are deprived of the 13th floor?

Can it be possible to build a house that has all its four walls facing towards the South?

The more it dries, the wetter it becomes. Can you tell what it is?