puzzles
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Ready for another test of mathematical intuition?
Asked by LostInParadise | 4 responses -
Will Shortz puzzle fans, how do you compare to the contestants in the weekly NPR show?
Asked by LostInParadise | 1 response -
Care to test your mathematical intuition on this simple problem?
Asked by LostInParadise | 11 responses -
Is this a good math problem?
Asked by LostInParadise | 2 responses -
Care to try this 3D visualization problem while staying at home?
Asked by LostInParadise | 5 responses -
Where to find puzzle designers?
Asked by Jonathan_hodgkins | 4 responses -
Have you ever done a wooden jigsaw puzzle?
Asked by Jeruba | 10 responses -
Who do you side with here (read more)
Asked by Demosthenes | 15 responses -
What's the most difficult riddle to solve in the world?
Asked by luigirovatti | 30 responses -
Is kneeling on a football field an act of domestic terrorism?
Asked by stanleybmanly from iPhone | 29 responses -
Anyone solve Will Shortz's two week challenge (see details)?
Asked by LostInParadise | 10 responses -
How are these two things similar? (Redux: want to play a game of similarity?)
Asked by Soubresaut | 60 responses -
What are word games like in languages other than English?
Asked by Jeruba | 3 responses -
Can you solve this ditloid?
Asked by MattJude from iPhone | 17 responses -
Do you have a site where I can get the answer to Will Shortz's NPR puzzle?
Asked by LostInParadise | 2 responses -
What are your favorite internet mysteries?
Asked by DrasticDreamer | 10 responses -
Where are the difficult sudoku puzzles with very few numbers in them?
Asked by flo | 14 responses -
What would happen if some of our avatars morphed?
Asked by Kardamom | 16 responses -
Philosophical question: do you take one box or two (see details)?
Asked by SavoirFaire | 73 responses -
How many 7's are there in the numbers from 1 to 999,999?
Asked by LostInParadise | 17 responses -
What do you think of this solution to Newcomb's Paradox?
Asked by LostInParadise | 24 responses -
Can you find the fallacy in this inductive argument that all things are the same?
Asked by LostInParadise | 3 responses -
Can you explain why Marilyn vos Savant was wrong?
Asked by LostInParadise | 10 responses -
Can you solve this math problem, which is much simpler than it may at first appear?
Asked by LostInParadise | 7 responses -
Which of these do you prefer? (ethics question)
Asked by weeveeship | 17 responses