Click here to win prizes by solving the puzzle Advent calendar.
Click here to win prizes by solving the puzzle Advent calendar.


Advent calendar 2016

3 December

What is the volume of the smallest cube inside which a rectangular-based pyramid of volume 266 will fit?


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Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

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crosswords sum to infinity geometry rugby spheres multiples wordplay factors probabilty christmas dates ave pascal's triangle games percentages taxicab geometry square roots crossnumbers palindromes planes polygons logic functions lines money menace area odd numbers perimeter sequences bases numbers rectangles shapes addition symmetry unit fractions chocolate trigonometry circles dice fractions calculus cryptic crossnumbers irreducible numbers balancing folding tube maps scales factorials star numbers triangles time triangle numbers people maths doubling ellipses indices volume integration mean floors sums graphs sport hexagons coordinates grids arrows averages division squares cryptic clues probability parabolas square numbers surds advent digits multiplication clocks differentiation regular shapes remainders 3d shapes speed complex numbers angles colouring prime numbers chalkdust crossnumber books proportion 2d shapes means integers cards cube numbers number algebra quadratics perfect numbers routes shape dodecagons partitions coins chess


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