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

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

Count the number of balls in picture below:

Solve the mathematical equation in the picture below.

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

If 1+9+8=1, what is 2+8+9?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

The more of this there is, the less you see. What is it?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?