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