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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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numbers
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Advent calendar 2025
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binary
shape
square numbers
colouring
functions
digits
advent
number
multiplication
pentagons
christmas
polynomials
wordplay
prime numbers
xor
geometry
crossnumbers
hexagons
division
chess
neighbours
combinatorics
consecutive numbers
coins
arrows
means
taxicab geometry
decahedra
bases
the only crossnumber
chalkdust crossnumber
numbers
sum to infinity
axes
cryptic crossnumbers
clocks
dice
folding tube maps
quadrilaterals
logic
volume
floors
sequences
time
integration
tiling
regular shapes
lines
algebra
cube numbers
determinants
irreducible numbers
balancing
elections
cubics
products
routes
parabolas
complex numbers
spheres
sport
odd numbers
cards
menace
digital products
dodecagons
perfect numbers
graphs
crosswords
mean
games
trigonometry
doubling
2d shapes
remainders
differentiation
sums
multiples
integers
geometric means
symmetry
sets
perimeter
shapes
area
percentages
triangle numbers
range
consecutive integers
probabilty
averages
surds
gerrymandering
fractions
tournaments
proportion
calculus
ave
rectangles
albgebra
lists
planes
addition
scales
ellipses
angles
3d shapes
medians
dominos
rugby
cryptic clues
even numbers
tangents
square grids
matrices
factors
pascal's triangle
coordinates
grids
dates
expansions
geometric mean
unit fractions
circles
partitions
square roots
star numbers
digital clocks
polygons
multiplaction squares
speed
indices
probability
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money
quadratics
chocolate
factorials
squares
people maths
palindromes
triangles
powers
prime factors
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