Advent calendar 2017

Archive

Show me a random puzzle

Tags

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