Show me a random puzzle
 Most recent collections 

Advent calendar 2020

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2021