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The big triangle brainteaser Brainteaser

by David, 17 April 2019 | 4 comments

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At Three Peaks School, they’re planning to build a gigantic triangle. The sides have just arrived, on the back of some truly ridiculous trucks, and with police escort. The longest side is 42 metres long, with the other two sides measuring 25 and 16 metres respectively. Can you work out the area of the triangle…

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Blue eyed cows brainteaser Brainteaser

by David, 3 April 2019 | 1 comments

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Imagine a place called Occhiblu station, where they’re trying to breed cows with blue eyes. They have 100 cows on the station, and some of them have one blue eye. Of the rest of the cows, half have two blue eyes. Recently, one of the farmhands noticed that blue eyes are sensitive to light, so…

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Checking the clock brainteaser Brainteaser

by David, 20 March 2019 | 6 comments

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Terry is inspecting a huge clock. It’s 2:12 and they just finished examining the big hand. They need to check the little hand next, but they want it pointing in exactly the same direction that the big hand is pointing now. How long will they need to wait until the little hand is pointing that…

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Mathematical pizza party Brainteaser

by David, 6 March 2019 | 0 comments

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Four mathematicians – Annie, Beth, Carol and Donna – have a fun tradition. Every Friday, they order a pizza. But before they can eat, they must each solve a puzzle.

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No zeros Brainteaser

by David, 20 February 2019 | 2 comments

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

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Curious times Brainteaser

by David, 7 February 2019 | 7 comments

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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. Four years later, she was counting the candles on her Dad’s birthday cake when she realised something mathematical. “You’re three…

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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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