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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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trigonometry
christmas
pascal's triangle
area
coins
crosswords
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mean
square roots
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odd numbers
remainders
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prime numbers
even numbers
people maths
averages
integers
quadratics
sum to infinity
speed
perfect numbers
triangle numbers
multiples
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percentages
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integration
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matrices
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tiling
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consecutive numbers
advent
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crossnumber
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volume
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rugby
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digital clocks
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number
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folding tube maps
star numbers
colouring
dates
cards
quadrilaterals
polygons
tournaments
regular shapes
expansions
the only crossnumber
addition
surds
partitions
pentagons
dodecagons
graphs
division
perimeter
algebra
differentiation
spheres
ave
arrows
shape
median
clocks
bases
grids
money
functions
balancing
cryptic clues
doubling
3d shapes
floors
digital products
tangents
cubics
gerrymandering
irreducible numbers
hexagons
square numbers
multiplication
taxicab geometry
factorials
sport
books
binary
crossnumbers
cryptic crossnumbers
chocolate
geometric means
dice
fractions
shapes
games
chalkdust crossnumber
probability
sums
polynomials
geometric mean
cube numbers
time
Archive
Show me a random puzzle
▼ show ▼
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Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
the only crossnumber
perfect numbers
means
dodecagons
probability
arrows
averages
crossnumbers
cubics
geometric means
bases
squares
factors
chocolate
coins
addition
time
quadratics
cube numbers
probabilty
binary
speed
dominos
expansions
elections
decahedra
quadrilaterals
triangle numbers
sums
combinatorics
sets
determinants
polynomials
spheres
taxicab geometry
circles
palindromes
geometric mean
proportion
menace
tournaments
remainders
axes
routes
sum to infinity
range
gerrymandering
complex numbers
consecutive integers
graphs
parabolas
digits
games
trigonometry
hexagons
algebra
area
unit fractions
odd numbers
square numbers
planes
median
pascal's triangle
differentiation
integers
3d shapes
integration
2d shapes
multiplication
volume
geometry
square roots
floors
number
even numbers
symmetry
triangles
christmas
chalkdust crossnumber
cryptic crossnumbers
products
pentagons
multiples
rugby
star numbers
books
consecutive numbers
dates
sequences
balancing
digital clocks
grids
chess
wordplay
tangents
shape
division
percentages
surds
crossnumber
mean
partitions
irreducible numbers
prime numbers
tiling
shapes
digital products
lines
angles
numbers
dice
clocks
doubling
advent
cards
sport
factorials
polygons
money
crosswords
scales
functions
perimeter
regular shapes
indices
ellipses
folding tube maps
calculus
coordinates
people maths
fractions
rectangles
logic
albgebra
matrices
ave
cryptic clues
colouring
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