Advent calendar 2019

Archive

Show me a random puzzle

Tags

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