mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2017

22 December

22 is two times an odd number. Today's number is the mean of all the answers on days (including today) that are two times an odd number.
Clarification: You are taking the mean for answers on days that are two times an odd numbers; ie. the days are two times odd, not the answers.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020