Advent calendar 2015

Archive

Show me a random puzzle

Tags

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