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 […]

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 […]

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: […]

Given 6 circles which are arranged in the form of a triangle as shown below ° ° ° ° ° ° You are supposed to […]