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Top Questions
11
votes
A self-referring number
calculation-puzzle
asked Apr 13, 2015 at 13:32
puzzling.stackexchange.com
10
votes
A number and its square
calculation-puzzle
asked Apr 13, 2015 at 15:11
puzzling.stackexchange.com
Top Answers
12
For which numbers does the order of reversing their digits and squaring not matter?
puzzling.stackexchange.com
12
Sum of secret numbers is 101
puzzling.stackexchange.com
9
Determine $X$ and $Y$: sum, difference and ratio
puzzling.stackexchange.com
8
How to maximize your wages?
puzzling.stackexchange.com
7
Confused clock face puzzle
puzzling.stackexchange.com
7
An unusual and very hard number sequence problem
puzzling.stackexchange.com
6
Ernie and the Alien Invasion
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5
Enlightened, Part II: A Curious Courtyard
puzzling.stackexchange.com
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