Advent calendar 2015

Archive

Show me a random puzzle

Tags

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