Advent calendar 2020

Archive

Show me a random puzzle

Tags

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