Advent calendar 2018

Archive

Show me a random puzzle

Tags

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