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Problematics | Beating the odds

India, Feb. 2 -- The 2026 football World Cup is just months away, which provides a good excuse for Problematics to look back at the 2022 edition. The semifinal line-up was greatly lopsided, with two m... Read More


Problematics | Tutor's bill

India, Jan. 26 -- The Arabian Nights stories and even the relation of them have given rise to a number of puzzles, with one of the best known being adding up grains of wheat placed in geometric progre... Read More


Thrust of the matter: Why Isro's workhorse PSLV trips at Stage 3?

New Delhi, Jan. 20 -- In back-to-back failures, two of Isro's PSLV missions have malfunctioned during the third of four stages. In May last year, PSLV-61 experienced a drop in pressure in the propulsi... Read More


Problematics | Einstein at a film festival

India, Jan. 19 -- If you have ever been to a film festival, you know that two or three of the films you went to watch can sometimes be screened simultaneously. If you watch one of them now, you cannot... Read More


Problematics | Dollars and paise

India, Jan. 12 -- When pioneering puzzler Mukul Sharma died some years ago, his friend Pritish Nandy, who had launched Sharma's Mindsport column in The Illustrated Weekly of India in the 1980s, observ... Read More


Problematics Week 173

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


Problematics | Word multipliers

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


Problematics | Wedding wheels

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


Problematics | Women batting, two by two

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