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Advent calendar 2016
21 December
All 2016 advent puzzles
~
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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.
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816
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averages
,
mean
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even numbers
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Most recent collections
Advent calendar 2025
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Advent calendar 2022
List of all puzzles
Tags
christmas
sets
taxicab geometry
speed
shape
quadratics
partitions
angles
indices
symmetry
dominos
star numbers
perfect numbers
folding tube maps
lines
square numbers
multiplaction squares
geometric mean
tangents
integers
cubics
colouring
range
tournaments
albgebra
bases
crossnumbers
ave
dice
the only crossnumber
sums
differentiation
lists
irreducible numbers
averages
doubling
xor
logic
routes
square grids
mean
coordinates
powers
sport
number
triangle numbers
polygons
books
gerrymandering
rectangles
medians
factorials
products
prime factors
time
consecutive numbers
dodecagons
binary
advent
cube numbers
cards
planes
crosswords
digital products
hexagons
squares
digital clocks
menace
geometry
odd numbers
factors
addition
trigonometry
complex numbers
square roots
functions
decahedra
surds
tiling
balancing
means
prime numbers
matrices
3d shapes
fractions
cryptic crossnumbers
quadrilaterals
circles
people maths
multiples
integration
algebra
sequences
rugby
neighbours
expansions
pascal's triangle
even numbers
combinatorics
perimeter
chess
multiplication
floors
graphs
remainders
dates
axes
determinants
coins
geometric means
arrows
wordplay
probabilty
unit fractions
games
volume
scales
consecutive integers
chocolate
digits
ellipses
probability
cryptic clues
clocks
chalkdust crossnumber
parabolas
elections
proportion
sum to infinity
regular shapes
grids
polynomials
numbers
money
area
division
triangles
palindromes
percentages
2d shapes
pentagons
calculus
median
spheres
shapes
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