
Combination lock  Addictive "Crack the code" math game  progressive and multiplayer modes. 

How Earth Moves  Unravelling the mysteries of time and space. 

xmas clock  Is it Christmas yet? 

Paperclips  Build your own paperclip empire 

Spend  Spend Bill Gates' money 

Game lengths  How long does it take to play... 

Types of octopi  What do you call an octopus with half a tentacle? 

Googolplex written out  The number Googolplex written out in a book and a series of PDF documents. 

Workout Cho.co  How many chocolate bars can you eat after that workout? 

Mega Penny  Can you visualise 1 million coins? 

Langton's Ants  Like Conway's Life, but with digital ants. 

2048 Numberwang  That's Numberwang! 

Jokes with Einstein  Hey, I got a joke 

Huge Numbers  A huge number, comes with free "puzzle" 

200 years, 4 minutes  Hans Rosling  200 years of world statistics compressed into 4 minutes. 

Correlated  Odd correlations 

Mile of Pi  A milelong printout of pi 

Price points  Get facts on the best numbers for pricing... (PricePoints.com) 

One million giraffes  His friend Jørgen... 

Pi 100K  100,000 digits of Pi 

Higher vs lower  Guess the popularity of Google searches, Youtube celebrities, etc. 

List of numbers  A list of numbers (incomplete) 

Secret Santa  How to do Secret Santa properly 

Other Worlds  How old are you in Martian years? 

Burping Champion  I just open me throat and let it roar... 

Shuffling Cards  How many ways can 52 cards be shuffled? 

CurrentMillis  How many milliseconds is it since the start of 1970? 

Spider calculator  Mmmm yum yum. 

Monolith  An evolutionary click game 

Octamatics  The power of eight 

Sleep Calculator  If I go to sleep now, when should I wa... ZZzzzzz 

Progress  How much longer? 

50 Cent  After adjustment for inflation 

Number  Rules: make number go up 

Mental age  How old is your mind? 

Population Clock  How many people in the world right now? 

Your birthdate in Pi  Find your birth date in Pi 

Dumb calculator  Preprogrammed calculator 

Gridwatch  The UK's National Grid Status 

Numbers  Distinctive but mostly useless facts 

Boogie maths  Maths explained through the medium of dance 
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