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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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addition
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tournaments
christmas
digital clocks
functions
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tiling
irreducible numbers
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doubling
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digital products
logic
indices
albgebra
the only crossnumber
colouring
chalkdust crossnumber
digits
integers
surds
bases
unit fractions
matrices
area
geometric means
cryptic crossnumbers
polynomials
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chess
folding tube maps
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star numbers
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taxicab geometry
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consecutive numbers
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multiples
time
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2d shapes
angles
binary
coins
dates
algebra
division
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expansions
dominos
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triangle numbers
cryptic clues
products
consecutive integers
coordinates
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even numbers
books
determinants
cubics
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advent
sum to infinity
integration
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Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
number
algebra
polynomials
axes
cubics
ave
games
means
surds
digital products
rugby
differentiation
complex numbers
star numbers
expansions
decahedra
odd numbers
geometric means
mean
probabilty
multiples
determinants
floors
ellipses
tournaments
christmas
crossnumbers
square roots
tiling
coordinates
planes
functions
pentagons
doubling
prime numbers
products
bases
multiplication
clocks
consecutive numbers
volume
palindromes
tangents
sets
combinatorics
logic
quadratics
averages
elections
triangles
median
the only crossnumber
advent
dice
angles
albgebra
time
taxicab geometry
consecutive integers
fractions
2d shapes
circles
sport
sequences
triangle numbers
quadrilaterals
dominos
integers
chess
routes
irreducible numbers
chocolate
shape
coins
people maths
matrices
symmetry
geometry
scales
dates
chalkdust crossnumber
3d shapes
colouring
trigonometry
balancing
books
range
proportion
speed
menace
cube numbers
grids
money
factors
arrows
numbers
square numbers
wordplay
shapes
addition
even numbers
sums
dodecagons
sum to infinity
folding tube maps
cards
remainders
regular shapes
polygons
geometric mean
division
parabolas
percentages
hexagons
rectangles
crosswords
indices
cryptic crossnumbers
area
cryptic clues
perimeter
gerrymandering
square grids
spheres
calculus
digits
partitions
factorials
lines
integration
unit fractions
digital clocks
neighbours
medians
pascal's triangle
powers
numbers grids
binary
perfect numbers
graphs
squares
probability
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