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