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Massive multiplication Brainteaser

by David, 13 November 2019 | 0 comments

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Difficulty: Fun Sienna’s teacher is writing up a wicked problem on the board. First, the teacher writes all the numbers from 1 to 99. Then they erase 10, 20, and all the other numbers that end in 0. “Listen up!” the teacher announces. “I want you to multiply all the numbers on the board.

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Power pole problems Brainteaser

by David, 30 October 2019 | 0 comments

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Difficulty: Fun Sergio is an electrician repairing a power line. There’s a stretch of eight, evenly spaced power poles he’s working on. The distance from the first to the fourth is 120 metres. What’s the distance from the first to the eighth pole?

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Spin and flip brainteaser Brainteaser

by David, 16 October 2019 | 2 comments

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Difficulty: Tricky I’ve got a square piece of paper, with lines for writing on both sides. Right now, the lines are running up and down the page. To get the lines running left and right, I could rotate the page, but that’s too boring. Can I do it by flipping the page instead?   Scroll…

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Perimeter pickle Brainteaser

by David, 2 October 2019 | 0 comments

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Difficulty: Tricky Imogen has had enough of her goats getting into her veggie patch. She’s bought wire and poles, but before she starts building, she must work out what shape fence she needs.

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BBQ brainteaser Brainteaser

by Jasmine, 18 September 2019 | 2 comments

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Written by Kerry Dent Difficulty: Tricky On the expedition’s small BBQ, only two potato cakes will fit at the same time.

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The difficult dial Brainteaser

by David, 4 September 2019 | 0 comments

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While working on an old weaving machine, Aisha spied a dial that needed repairing. The dial had numbers counting upwards, evenly spaced around the outside. Although she couldn’t see the whole dial, she could see that the number 6 was directly opposite 17. Can you work out how many numbers there are on the dial?

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Pademelon paddocks brainteaser Brainteaser

by David, 21 August 2019 | 0 comments

Small marsupial with large back legs and tail for hopping.

Fred is a biologist doing an experiment with pademelons. They have a square paddock and four feeding bowls. They also have two laser detectors that each shoot a straight beam all the way across the paddock.

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A sign of the times brainteaser Brainteaser

by David, 7 August 2019 | 2 comments

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Terri was doing sums for her signwriting business. She worked out that one-third of six and two-thirds of eleven together made seven. Her maths might seem wonky, but she was completely correct. Can you work out what she was trying to do?

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The full fruit bowl brainteaser Brainteaser

by David, 24 July 2019 | 1 comments

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There are three types of fruit in the fruit bowl: All pieces of fruit are bananas, except for three of them. All pieces of fruit are apples, except for four of them. All pieces of fruit are oranges, except for five of them.

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The speediest cyclist Brainteaser

by David, 10 July 2019 | 0 comments

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Alice, Bernice and Claire are all speedy bike riders. They decided to race against each other to find out who is fastest cyclist. They ran three races together. In two races, Alice beat Bernice. In two races, Bernice beat Claire.

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