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Advent calendar 2016
15 December
All 2016 advent puzzles
~
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A book has 386 pages. What do the page numbers on the two middle pages add up to?
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387
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Advent calendar 2025
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Tags
circles
crossnumbers
dodecagons
polynomials
lists
xor
indices
complex numbers
planes
3d shapes
arrows
coordinates
binary
ave
coins
multiplication
palindromes
chess
probability
square numbers
digital clocks
matrices
median
time
dominos
pascal's triangle
speed
calculus
routes
square grids
graphs
volume
regular shapes
range
means
ellipses
star numbers
doubling
perimeter
number
cryptic crossnumbers
spheres
geometry
triangle numbers
bases
colouring
integers
wordplay
rectangles
addition
menace
percentages
sets
taxicab geometry
chocolate
division
elections
rugby
cube numbers
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pentagons
the only crossnumber
balancing
digital products
consecutive integers
sum to infinity
folding tube maps
products
averages
squares
lines
medians
prime factors
determinants
digits
money
proportion
neighbours
surds
functions
chalkdust crossnumber
decahedra
fractions
perfect numbers
sequences
dates
square roots
gerrymandering
logic
cubics
floors
polygons
unit fractions
parabolas
triangles
area
scales
crosswords
differentiation
odd numbers
books
tangents
mean
expansions
shape
multiples
prime numbers
axes
tournaments
factors
cards
games
remainders
sums
dice
angles
geometric mean
tiling
algebra
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integration
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cryptic clues
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