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

17 December

The number of degrees in one internal angle of a regular polygon with 360 sides.


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


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