Tour
About Us
Meta
Loading…
current community
Stack Exchange
chat
Meta Stack Exchange
your communities
Sign up
or
log in
to customize your list.
more stack exchange communities
company blog
Log in
Stack Exchange
All Sites
Top Users
Digests
Angkor
top
accounts
reputation
activity
bookmarks
subscriptions
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
puzzling.stackexchange.com
5
Enlightened, Part II: A Curious Courtyard
puzzling.stackexchange.com
Stack Exchange works best with JavaScript enabled