Page 2 - Kabir Firaque- Read all stories from Kabir Firaque | Hindustan Times

### Puzzles Editor Kabir Firaque is the author of the weekly column Problematics. A journalist for three decades, he also writes about science and mathematics.

Articles by Kabir Firaque

## The headline is a Christmas greeting but is also a hidden mathematical puzzle. Can you solve it, besides distributing some goods for the festive occasions?

Updated on Dec 25, 2023 03:01 PM IST

## The same genetic mutations that enhance reproduction early in life are likely to lead to ageing in later years, meaning that fertile individuals may age faster

Published on Dec 23, 2023 04:49 PM IST

## Archimedes, Bohr, Curie, Darwin, Einstein, Faraday and Galileo watch a movie after distributing their money. How much money did each have in the beginning?

Published on Dec 18, 2023 08:00 AM IST

## One person runs and another one walks on a circular road, moving in opposite directions, before they switch roles. Can you determine where and when they meet?

Published on Dec 11, 2023 10:28 AM IST

## Delhi residents, facing lower temperatures, scoff at ‘winter’ in Mumbai. Why do residents of the coastal city and the northern city seem to feel equally cold?

Published on Dec 08, 2023 03:36 PM IST

## Here is an ingenious variation of nim, the game in which two players remove matchsticks from the table. Can you identify the winning strategy?

Published on Dec 04, 2023 04:21 PM IST

## In a future world, where AI controls everything including cricket, some Einsteinian puzzling about which iconic robot specialises in what kind of spin

Published on Nov 27, 2023 03:39 PM IST

## Researchers have identified 276 facial expressions in cats. To convey the same kind of emotion, a cat may present one expression to a human and another to a cat

Published on Nov 23, 2023 07:27 PM IST

## Here’s a party trick in which you can tell the sum of five numbers, chosen by two different persons, without actually adding them. What is the secret?

Published on Nov 20, 2023 11:31 AM IST

## Games of chance can be an endless source of puzzles. Here is a relatively simple one about a gambler for whom the number 37 appears to carry a jinx

Updated on Nov 16, 2023 06:30 PM IST

## Help a spider cross the street without spinning a web. She has two poles to navigate, with some elementary calculations.

Published on Nov 06, 2023 05:48 PM IST

## Moon samples brought back by American and Soviet missions taught us about the solar system. Now India wants to contribute

Updated on Oct 31, 2023 02:08 PM IST

## Take any two numbers and keep adding them until you have 10 numbers. What is the quick way to determine the sum of all 10 numbers?

Published on Oct 30, 2023 01:48 PM IST

## Try this game of deduction in which three persons know a letter each. What is the word that can be formed with these three letters?

Published on Oct 23, 2023 02:02 PM IST

## The hunt for a superconductive material at room temperature remains alluring and has given rise to many claims which have, however, been subsequently disproved

Updated on Oct 17, 2023 05:09 PM IST

## A reminder that 7 wins in 9 matches may not be enough to ensure a berth in the top four. Given this points table, can you work out which team won which game?

Published on Oct 16, 2023 04:13 PM IST

## Can you figure out the game of Inglorious Uncertaintus and create a smart World Cup table? Try this week’s cricket puzzles

Updated on Oct 09, 2023 03:01 PM IST

## Alexei Ekimov, Louis Brus and Moungi Bawendi discovered and created nanoparticles called quantum dots, whose size dictates their properties

Updated on Oct 08, 2023 11:39 AM IST
By, New Delhi

## On their way to Nobel Prize, Pierre Agostini, Ferenc Krausz and Anne L’Huillier generated brief pulses of light, enabling the study of electrons in motion

Updated on Oct 04, 2023 06:38 AM IST

## mRNA developed in the lab would trigger an inflammatory response once delivered. Katalin Karikó and Drew Weissman made alterations to overcome this problem.

Updated on Oct 03, 2023 04:41 AM IST
By, New Delhi

## The mystery of the typewriter is gone with the rise of smartphones and computers. However, carbon paper still has some use, such as in college projects.

Updated on Oct 02, 2023 05:21 PM IST

## Read about Dipyaman Ganguly’s study on autoimmune disorders, and Neeraj Kayal’s work on transforming a philosophical problem into a mathematical one

Updated on Sep 30, 2023 09:40 AM IST

## Read about Vimal Mishra’s attempt to quantify changes in water resources, and Akkattu T Biju’s work to improve the quality of pharmaceutical molecules

Published on Sep 29, 2023 10:12 AM IST

## The exoplanet K2-18b’s atmosphere has signatures of carbon dioxide, methane and possibly dimethyl sulphide, which is not known to exist where life does not.

Updated on Sep 29, 2023 12:58 PM IST

## Experiments at CERN have now demonstrated that antimatter falls, validating yet another aspect of the general theory.

Updated on Sep 29, 2023 10:35 AM IST
By, New Delhi

## Read about Rajnish Kumar's study on extracting methane from hydrates and Apoorva Khare’s efforts to connect branches of mathematics, like algebra and analysis

Published on Sep 28, 2023 09:23 AM IST

## Read about Ashwani Kumar's research on biofilms in TB drug resistance, and Basudeb Dasgupta's research in the interface of astrophysics and particle physics

Updated on Sep 27, 2023 11:20 AM IST

## Read about Debabrata Mati's methods leading to valuable molecules and Dipti Ranjan Sahoo's devices and designs to protect buildings hit by earthquakes

Published on Sep 26, 2023 09:41 AM IST

## A puzzle seemingly impossible to solve, but in fact deceptively simple. Can you solve it without using mathematics?

Published on Sep 25, 2023 05:07 PM IST

## Read about Shanti Swarup Bhatnagar awardees: Maddika Subba Reddy’s research on how proteins behave in cells and Anindya Das’ search for subatomic particles

Published on Sep 25, 2023 04:52 PM IST
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