# Blog

## No zeros

By David Shaw, 20 February 2019

Which two whole numbers – without any zeros – multiply together to make 1 000 000?

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## Curious times

By David Shaw, 7 February 2019

Maryam had been practising the times tables really hard, so she was on the alert for interesting patterns. On her dad’s birthday she noticed something special. “You’re four times older than me, Dad,” she exclaimed.

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## Successive sequence

By David Shaw, 23 January 2019

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

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## Counting threes

By David Shaw, 9 January 2019

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

By David Shaw, 12 December 2018

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

By David Shaw, 28 November 2018

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

By David Shaw, 14 November 2018

At half-past three, what is the angle between the hands of a clock?

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## A fish tank on the table

By David Shaw, 31 October 2018

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.

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## Tom’s quilt brainteaser

By David Shaw, 17 October 2018

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.

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