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