(P. B. Lakshmi Narasimhan, Chennai)When you think out of the box, you think creatively, you think in an unconventional manner. The expression derives from the famous puzzle created by a British mathematician, Henry Ernest Dudeney. In this puzzle there are nine dots arranged in three rows; each row containing three dots. The challenge is to connect all nine dots making use of four straight lines, without taking the pencil off paper. *Sanjay has always been an out of the box sort of guy. S. UPENDRAN