The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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.

Count the number of triangles in the picture below:

Who is that with a neck and no head, two arms and no hands? What is it?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?