mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2016

21 December

Today's number is a multiple of three. The average (mean) of all the answers that are multiples of three is a multiple of 193.
Tags: averages, mean

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

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

Archive

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