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