Honest man playing card puzzle
An honest man holds a card which can be either ‘1‘, ‘2‘ or ‘3‘. You can ask one (and only one) question to the man. The man is allowed to answer only ‘Yes‘, ‘No‘ and ‘I don’t know‘. The honest man obviously never lies. What question will you ask so that you get to know about the […]
Chess board puzzle
Imagine you have infinite number of Queens. Find the minimum number of queens required so that every square grid on the chess board is under the attack of a queen. Arrange this minimum no. of Queens on a chess board.
Ages of three children
A lady has 3 daughters, A man visited their house and asked the ages of her three daughters. The lady started giving him clues: Lady: Product of their ages (ages of her 3 daughters) is 72. Man did some calculations and says: The clue is insufficient to determine the ages. Lady: Ok, let me give […]
Invert traingle made from 6 circles
Given 6 circles which are arranged in the form of a triangle as shown below ° ° ° ° ° ° You are supposed to invert the triangle and want to move minimum circles. At least how many circles do you need to move to invert the above triangle as below ° ° ° ° […]
