Transum Mathematics Puzzles

John Tranter

This Transum podcast features a puzzle of the month as well as information about everything new on Transum Mathematics. Look for the latest episode of the podcast in the iTunes Store

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141 episodes
Updated Saturday

Episodes141

Newest first

Apr 1, 2018 · 12 min
Cutting the Lawn
Aynuk and Ayli cut half of the lawn each. How long is each side of the square lawn?
Mar 1, 2018 · 13 min
The Missing Pound's Found
A really wonderful answer to the missing pound puzzle.
Feb 1, 2018 · 9 min
Forty Five In Four Parts
Split the number 45 into four parts according to the given information.
Jan 8, 2018 · 6 min
Shrivelled Spuds
Work out the weight of the potatoes after they have been left out in the sun to dry.
Dec 1, 2017 · 10 min
Transposition Error
Work out the bank balance given information about the transposition error.
Nov 1, 2017 · 12 min
Counting Sheep
Work out the number of sheep owned by Percy and Patsy from the given clues.
Oct 1, 2017 · 11 min
Juggling with Egg Timers
Can you time exactly nine minutes using the four and seven minute egg timers?
Sep 1, 2017 · 12 min
Permutations Sum
What is sum of all the four digit numbers containing all of the digits one to four?
Jul 31, 2017 · 14 min
Odd Probability
What is the probability that two random numbers are both even if they are not both odd?
Jun 30, 2017 · 9 min
Regions in Circles
Calculate the number of regions in a circle formed by intersecting chords.
Jun 1, 2017 · 11 min
Brothers and Sisters
Can you work out the number of children in the Numlove family given the clues about brothers and sisters?
Apr 30, 2017 · 12 min
Exam Average
What mark is required in the last exam to achieve an 80% overall average?
Mar 31, 2017 · 12 min
Cake Cut
Where should the last slice of cake be cut to give two equal pieces?
Feb 27, 2017 · 11 min
Holy Sphere
Calculate the remaining volume of the sphere after a cylindrical hole has been drilled through the centre.
Jan 17, 2017 · 10 min
Jumping Flea
How many different places could the flea find itself after 8 foot-long jumps either north, south, east or west?
Dec 1, 2016 · 11 min
Last Digit
How many positive two-digit numbers are there whose square and cube both end in the same digit?
Nov 1, 2016 · 6 min
Central Station
The probability that the next train to leave will be going north is five times the probability that the next train to leave will be going south. How can that be?
Sep 30, 2016 · 10 min
Canteen Queue
Is it possible to answer the question if Betsy's age is not known?
Sep 2, 2016 · 7 min
Separated Twins
Work out the combination of the safe given the clues about pairs of numbers.
Jul 1, 2016 · 8 min
Divisible By Three
A puzzle about two digit numbers that can be made from ten different digits.