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

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

Archive

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