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


Advent calendar 2015

8 December

What is the largest number of factors which a number less than a million has?

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


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