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Problematics | The IPL equation

Published on Apr 15, 2024 03:14 PM IST

One batter saves the day for his team with a fighting innings. How much does he score, and how many runs does his teammate contribute to a key partnership?

Representational image.

Problematics | Five parties, five defections

Meet five politicians who switch parties ahead of the elections. Which member came from which party, and who went where?

Here’s an Einstein puzzle about members from different parties switching sides ahead of the elections. (Shutterstock)(Shutterstock)
Published on Apr 08, 2024 05:07 PM IST

Problematics | How to win at Scrabble

A couple plays Scrabble for money, doubling the stakes in each successive round. If the husband loses ₹501 in the end, which games has the wife won?

Representational image.
Published on Apr 01, 2024 07:25 AM IST

Problematics | The colours of mathemagic

Meet a magician deducing which member of the audience has which packet of Holi colours in his pocket. What is the mathematics that makes the trick work?

Representational Image
Published on Mar 25, 2024 07:51 AM IST

Problematics | The long and the short of growing flowers

This week, an ancient puzzle in a new setting that involves two rectangular flowerbeds, followed by a flower sale

Representational Image
Published on Mar 11, 2024 06:46 AM IST

Problematics | Walk, don’t run

A speed-and-distance puzzle set in a forest where wild animals may be lurking, plus a sitter about the numbers on the face of a clock.

Representational Image.
Published on Mar 04, 2024 12:09 PM IST

Problematics | Five Oscar nominees, five viewers

Ahead of the Oscars, an Einstein puzzle involving 5 Best Picture nominees, followed by a probability puzzle

Representational Image.
Published on Feb 26, 2024 09:47 AM IST

Problematics | Reluctant recruits go to war

This week, a mathematical puzzle in which you work out the number of men and women who enlisted for battle, plus a set of cricket anagrams.

Welcome to Problematics!(Shutterstock)
Published on Feb 19, 2024 08:00 AM IST

Problematics | Who wins this race?

Five athletes in their lanes, each from a different country and dressed in her favourite colour. Who is wearing what, and who wins?

Welcome to Problematics!(Shutterstock)
Published on Feb 12, 2024 08:00 AM IST

Problematics | The fast and the furious

We give you three runners, the differences in their speeds and in the time they clocked. What is the length of the race, and how long did each runner clock?

Welcome to Problematics!(Shutterstock)
Updated on Feb 05, 2024 11:26 AM IST

Weird Science | The theory of everything, quantum body and mind edition

This is not the first time that someone has connected the mysteries of everyday life with the quantum world. The end effect is a whole lot of unknowns

The idea of a quantum body and the quantum theory of consciousness are distinct from each other(Pixabay)
Published on Jan 29, 2024 02:23 PM IST

Problematics | Lewis Carroll transported to Haryana

The creator of Alice in Wonderland was also a mathematician and master puzzler. To mark his birth anniversary, here is an adaptation of one of his puzzles

Lewis Carroll, born Charles Lutwidge Dodgson, was a mathematician who engaged readers with puzzles (Source: Public Domain)
Published on Jan 29, 2024 08:00 AM IST

Problematics | How to arrange your bookshelf

Arrange your books vertically and you run out of space. Stack them up flat on their backs and your shelf is left with unused space. How many books are new?

Welcome to Problematics!(Shutterstock)
Published on Jan 22, 2024 08:00 AM IST

Weird Science | How X-59 could break the sound barrier without too much sound

NASA and Lockheed Martin recently unveiled the X-59 aircraft that aims to conquer one of the key issues with supersonic aircraft- a sonic boom

The experimental quiet supersonic aircraft X-59, a collaboration of Lockheed Martin's Skunk Works and NASA, is seen parked in a hangar in Palmdale, California, U.S. December 12, 2023. Lockheed Martin/Garry Tice/Handout via REUTERS. (via REUTERS)
Published on Jan 15, 2024 09:40 PM IST

Problematics | Highs and lows in T20 cricket

Meet 10 players playing a tournament like the IPL. From the clues given, can you pair them into their respective teams and find out who scored how many runs?

Welcome to Problematics!(Shutterstock)
Published on Jan 15, 2024 08:16 PM IST

Problematics | How to complete your course before the exams

The speed at which you intend to study often ends up as wishful thinking. Meet a student who went a bit slow and figure out how much she needs to make up.

Welcome to Problematics!(Shutterstock)
Published on Jan 08, 2024 12:29 PM IST

Problematics | Lies and truths for the New Year

We kick off 2024 with some people who always tell the truth and some others who always lie. Can you determine how many there are of each kind?

Welcome to Problematics!(Shutterstock)
Updated on Jan 01, 2024 08:27 PM IST

A walk through Indian time from Ujjain to Mirzapur via Greenwich

As things stand now, the vast breadth of India follows a single time zone based on the Mirzapur line, midway between the country’s eastern and western extremes

Sun Dial
Updated on Dec 27, 2023 08:37 PM IST

Problematics | Merry Xmas to all

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?

Welcome to Problematics!(Shutterstock)
Updated on Dec 25, 2023 03:01 PM IST

Having kids doesn't keep you younger

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

For centuries, scientists have been pondering why people age and die(Pixabay)
Published on Dec 23, 2023 04:49 PM IST

Problematics | When Einstein and Galileo watched Oppenheimer

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

Welcome to Problematics!(Shutterstock)
Published on Dec 18, 2023 08:00 AM IST

Problematics | Speed test while walking and running

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?

Welcome to Problematics!(Shutterstock)
Published on Dec 11, 2023 10:28 AM IST

Weird Science | Let’s settle the eternal Mumbai v Delhi argument

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?

People take a stroll at Kartavya Path amid dense fog on a cold winter day in New Delhi. (ANI Photo)
Published on Dec 08, 2023 03:36 PM IST

Problematics | Games with matches and jumbled scientists

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

Welcome to Problematics!(Shutterstock)
Published on Dec 04, 2023 04:21 PM IST

Problematics | When robots bowl spin

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

Welcome to Problematics!(Shutterstock)
Published on Nov 27, 2023 03:39 PM IST

Weird Science | What puppy dog eyes and cat’s (trembling) whiskers really mean

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

When a dog makes the familiar “puppy dog eyes”, raising its eyebrows and presenting a mournful face, it is understood to be signalling that it wants the human’s attention(Pexels)
Published on Nov 23, 2023 07:27 PM IST

Problematics | Addition without adding

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?

Welcome to Problematics!(Shutterstock)
Published on Nov 20, 2023 11:31 AM IST

Problematics | A gambler’s unlucky number

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

Welcome to Problematics!(Shutterstock)
Updated on Nov 16, 2023 06:30 PM IST

Problematics | A spider’s tale, with a nod to Pythagoras

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

Welcome to Problematics!(Shutterstock)
Published on Nov 06, 2023 05:48 PM IST

Weird Science | A hop for a lander, a leap for ISRO, a giant stride in knowledge

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

Astronaut Harrison H Schmitt collects lunar samples during the Apollo 17 mission in 1972(NASA)
Updated on Oct 31, 2023 02:08 PM IST
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