Advent calendar 2021

Archive

Show me a random puzzle

Tags

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