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Advent calendar 2017
11 December
All 2017 advent puzzles
~
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Two more than today's number is the reverse of two times today's number.
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497
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numbers
,
digits
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tiling
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square numbers
percentages
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decahedra
christmas
doubling
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addition
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cryptic crossnumbers
irreducible numbers
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even numbers
expansions
floors
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perimeter
people maths
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advent
integers
unit fractions
axes
the only crossnumber
number
mean
functions
pascal's triangle
albgebra
remainders
circles
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factors
division
3d shapes
balancing
square roots
complex numbers
dominos
coordinates
folding tube maps
neighbours
triangles
sport
polynomials
colouring
calculus
Archive
Show me a random puzzle
▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
square roots
fractions
neighbours
powers
quadratics
consecutive numbers
irreducible numbers
speed
triangles
rectangles
planes
sum to infinity
complex numbers
shapes
clocks
bases
graphs
christmas
numbers grids
indices
grids
advent
rugby
dice
geometric means
routes
logic
square numbers
scales
perimeter
tournaments
chalkdust crossnumber
combinatorics
odd numbers
geometric mean
ellipses
arrows
averages
crossnumbers
integration
menace
lines
determinants
factorials
matrices
doubling
pentagons
albgebra
means
differentiation
square grids
crosswords
proportion
products
geometry
partitions
sums
2d shapes
cards
polynomials
sequences
parabolas
dodecagons
expansions
angles
factors
functions
prime numbers
folding tube maps
median
digits
star numbers
multiplication
axes
hexagons
people maths
colouring
probability
algebra
mean
trigonometry
money
cryptic clues
quadrilaterals
perfect numbers
tiling
probabilty
volume
chess
binary
number
polygons
surds
cryptic crossnumbers
decahedra
area
numbers
medians
balancing
palindromes
tangents
pascal's triangle
cube numbers
even numbers
coordinates
sets
squares
remainders
calculus
taxicab geometry
unit fractions
dates
consecutive integers
digital products
dominos
addition
percentages
books
circles
division
time
chocolate
ave
cubics
digital clocks
gerrymandering
games
elections
3d shapes
coins
triangle numbers
wordplay
symmetry
range
the only crossnumber
spheres
regular shapes
integers
multiples
shape
sport
floors
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