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