Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with keys-and-locks
Search options answers only
not deleted
user 1587
For puzzles about using keys to open locks and doors.
14
votes
10 Prisoners, 10 Keys, and 7 Years
The first day, "while no one is watching", a prisoner takes his key and tries it in the lock of each of nine other cells.
The prisoner swaps his key for the one that is in the cell that opens.
The pri …
- 343