Advent calendar 2017

Archive

Show me a random puzzle

Tags

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