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Advent calendar 2016
18 December
All 2016 advent puzzles
~
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The smallest number whose sum of digits is 25.
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Most recent collections
Advent calendar 2025
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List of all puzzles
Tags
sums
expansions
geometry
sport
unit fractions
functions
remainders
perimeter
planes
products
tournaments
squares
star numbers
quadratics
calculus
square grids
averages
doubling
trigonometry
balancing
number
integration
probability
prime numbers
dice
tangents
lines
regular shapes
coins
pentagons
tiling
neighbours
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crossnumbers
proportion
digits
graphs
books
powers
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triangles
lists
elections
determinants
circles
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cryptic clues
irreducible numbers
mean
multiples
means
division
probabilty
rectangles
even numbers
multiplication
symmetry
dodecagons
routes
surds
polynomials
ellipses
dominos
addition
2d shapes
consecutive numbers
rugby
palindromes
factorials
sequences
digital products
algebra
integers
binary
volume
axes
time
menace
xor
square numbers
shapes
percentages
odd numbers
factors
triangle numbers
cubics
parabolas
chess
albgebra
cryptic crossnumbers
sets
shape
indices
range
fractions
complex numbers
prime factors
3d shapes
arrows
digital clocks
angles
ave
people maths
cube numbers
differentiation
multiplaction squares
gerrymandering
advent
spheres
hexagons
colouring
geometric mean
money
dates
sum to infinity
wordplay
scales
grids
christmas
taxicab geometry
numbers
consecutive integers
logic
coordinates
clocks
games
cards
decahedra
chalkdust crossnumber
geometric means
chocolate
polygons
folding tube maps
bases
speed
area
combinatorics
crosswords
perfect numbers
pascal's triangle
median
matrices
the only crossnumber
partitions
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