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Advent calendar 2016
22 December
All 2016 advent puzzles
~
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Today's number is a palindrome. Today's number is also the number of palindromes between 111 and 11111 (including 111 and 11111).
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191
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Archive
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Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
sport
differentiation
crossnumbers
albgebra
rugby
christmas
sums
scales
graphs
prime numbers
range
odd numbers
circles
factors
geometry
complex numbers
ellipses
geometric means
digital products
calculus
routes
sequences
chess
time
taxicab geometry
surds
planes
advent
grids
trigonometry
functions
cryptic clues
chalkdust crossnumber
bases
triangle numbers
coins
number
expansions
perfect numbers
gerrymandering
tiling
tournaments
ave
products
quadrilaterals
percentages
doubling
consecutive numbers
books
probabilty
matrices
algebra
quadratics
digits
irreducible numbers
arrows
means
multiplication
median
wordplay
dates
binary
logic
shape
symmetry
cube numbers
shapes
dominos
regular shapes
cryptic crossnumbers
money
digital clocks
proportion
parabolas
combinatorics
square numbers
elections
multiples
dodecagons
partitions
2d shapes
square roots
squares
menace
geometric mean
folding tube maps
decahedra
probability
integration
integers
cards
3d shapes
star numbers
mean
polynomials
floors
lines
speed
triangles
factorials
games
cubics
area
spheres
consecutive integers
dice
axes
tangents
determinants
crossnumber
rectangles
even numbers
volume
polygons
people maths
numbers
fractions
division
chocolate
the only crossnumber
indices
coordinates
perimeter
averages
crosswords
sets
sum to infinity
remainders
hexagons
pascal's triangle
pentagons
addition
colouring
clocks
palindromes
angles
balancing
unit fractions
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