mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

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.

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 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

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

Archive

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