India, Dec. 15 -- The last time we had a numerical word puzzle of this kind, a number of readers wrote back to say it was a tough one. I expect this week's revival (same kind, different words and numb... Read More
India, Dec. 15 -- The last time we had a numerical word puzzle of this kind, a number of readers wrote back to say it was a tough one. I expect this week's revival (same kind, different words and numb... Read More
India, Dec. 8 -- Puzzles involving speed and distance, like the one involving trains between Delhi and Amritsar, can never be monotonous because of the variety they offer. Each can be different from t... Read More
India, Nov. 10 -- India's triumph in the ODI World Cup came just over a week ago, recent enough to theme a puzzle on women's cricket. To be honest, the puzzle below (adapted from Henry Dudeney's infin... Read More
India, Oct. 27 -- Bringing puzzles to a wide audience can sometimes bring unexpected rewards. Whether you create a new puzzle or adapt an existing one, readers can make observations that you had not n... Read More
India, Oct. 20 -- A very happy Diwali to readers of Problematics, the fourth time we are celebrating the festival together since this column launched in its present form in Hindustan Times in 2022. We... Read More
India, Oct. 13 -- Problematics has occasionally had puzzles in which you cannot determine the complete set of variables, but can still settle specific questions with answers that remain the same in al... Read More
India, Oct. 9 -- It is like piecing together a Lego structure, but with molecular components. Metal-organic frameworks, or MOFs, the subject of the research behind this year's Nobel Prize for Chemistr... Read More
NEW DELHI, Oct. 8 -- Even people without a background in science are familiar with Schrodinger's cat because of the sheer audacity of the idea: the cat in a box is both alive and dead at the same time... Read More
India, Oct. 8 -- Even people without a background in science are familiar with Schrodinger's cat because of the sheer audacity of the idea: the cat in a box is both alive and dead at the same time unt... Read More