mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2015

16 December

Today's number is four thirds of the average (mean) of the answers for 13th, 14th, 15th and 16th December.

Show answer

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2025

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2026