Advent calendar 2018

Archive

Show me a random puzzle

Tags

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