Advent calendar 2015

Archive

Show me a random puzzle

Tags

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