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Time travel, anime and maths News

by David, 6 February 2019 | 4 comments

DVD cover image animated picture of 5 children, 2 girls and 3 boys with the title, The melancholy of Haruhu Suzumiya Collection.

Way back in 2006, an unusual anime began airing on Japanese television. Although the series was about aliens, time travel and other supernatural events, no one could have predicted the strange effects that The Melancholy of Haruhi Suzumia would have on the world of mathematics.

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Successive sequence Brainteaser

by David, 23 January 2019 | 0 comments

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What’s the next letter in this sequence? F, S, T, F, F, S, S, E …

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Counting threes Brainteaser

by David, 9 January 2019 | 0 comments

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Tilly started writing down numbers as she counted them out, “1, 2, 3, 4 …” She was interrupted when she was writing down the 33rd 3. What number was she in the middle of writing?

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This code’s for oldies Brainteaser

by David, 12 December 2018 | 0 comments

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If you’re sitting there twiddling your thumbs, see if you can decode this message. If you need a hint, you can always phone a friend! 3666882255533 443355544499 339987772

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Number cruncher Brainteaser

by David, 28 November 2018 | 1 comments

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I have four different whole numbers written on a piece of paper. The largest number is four bigger than the smallest. The middle two numbers are even. If I add all four numbers together, I get 12. What are my numbers?

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Half past angle Brainteaser

by David, 14 November 2018 | 0 comments

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At half-past three, what is the angle between the hands of a clock? Scroll down for the answer!     Brainteaser answer First, a quick estimate. The short hand points across to the three, and the long hand points straight down to the 6. The angle is about 90 degrees, but there’s a more accurate…

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A fish tank on the table Brainteaser

by David, 31 October 2018 | 1 comments

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Jenny had a short, wide fish tank. She wanted to change the water, so she put the fish tank on a table and put a tall bucket on the floor right underneath. She was about to get a hose and siphon the water into the bucket, but before she started, she did some measuring. It…

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Tom’s quilt brainteaser Brainteaser

by David, 17 October 2018 | 0 comments

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Tom’s just finished sewing a quilt! It’s made of lots of equal-sized squares of fabric sewn together. Currently, it’s 12 squares long and six squares wide. Tom tried putting the quilt on his bed, but it’s the wrong shape. He’s decided to make it nine squares long and eight squares wide. Tom wants to break…

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Making change Brainteaser

by David, 3 October 2018 | 0 comments

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Australia has six coins that are commonly used – 5 cents, 10 cents, 20 cents, 50 cents, $1 and $2. How many different ways can you make exactly 50 cents in Australian coins?

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Planning to party Brainteaser

by David, 19 September 2018 | 0 comments

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On Sunday, 1 January, Latda announced her New Year’s resolution. “Throughout this year, on the fifth Sunday of the month, I’ll throw a party!” How many fifth Sunday parties did Latda celebrate that year?

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