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