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[Not-so-daily puzzle] Sudoku puzzle
339 sats \ 3 comments \ @south_korea_ln 3 Dec 2024 science
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[Daily puzzle] No calculator math
833 sats \ 20 comments \ @south_korea_ln 12 Oct 2024 science
[Daily puzzle] Temporary break
682 sats \ 4 comments \ @south_korea_ln 16 Nov 2024 science
[Daily puzzle] Another MSM puzzle
717 sats \ 10 comments \ @south_korea_ln 18 Oct 2024 science
[Daily puzzle] Find area of white region
2026 sats \ 18 comments \ @south_korea_ln 10 Oct 2024 science
[Daily puzzle] A MSM puzzle
660 sats \ 11 comments \ @south_korea_ln 17 Oct 2024 science
[Daily puzzle] Fill in the blanks
2368 sats \ 20 comments \ @south_korea_ln 29 Oct 2024 science
[Daily puzzle] Maximum distance between 5 points in a square?
1410 sats \ 10 comments \ @south_korea_ln 9 Oct 2024 science
[Daily puzzle] Find the ratio
847 sats \ 8 comments \ @south_korea_ln 26 Oct 2024 science
[Not-so-daily puzzle] Circle fun
757 sats \ 0 comments \ @south_korea_ln 29 Jan 2025 science
[Daily puzzle] If m! x n! = 10! then m x n = ?
1022 sats \ 22 comments \ @south_korea_ln 24 Sep 2024 charts_and_maps
[Daily puzzle] Easy square root
460 sats \ 10 comments \ @south_korea_ln 12 Nov 2024 science
[Not so daily puzzle] Sum-o wrestlingwww.theguardian.com/science/2025/aug/18/can-you-solve-it-are-you-a-matcha-for-these-tasty-japanese-puzzles
950 sats \ 7 comments \ @south_korea_ln 19 Aug 2025 science
[Daily puzzle] How many pairs?
679 sats \ 6 comments \ @south_korea_ln 9 Nov 2024 science
[Not-so-daily puzzle] Two envelope puzzle
921 sats \ 12 comments \ @south_korea_ln 25 Dec 2024 science
[Not-so-daily puzzle] Which one is bigger?
908 sats \ 8 comments \ @south_korea_ln 20 Dec 2024 science
[Daily puzzle] Magic product puzzle
681 sats \ 11 comments \ @south_korea_ln 15 Oct 2024 science
[Daily puzzle] Fun with geometry
757 sats \ 4 comments \ @south_korea_ln 20 Oct 2024 science
[Daily puzzle] Truth-tellers and liars
651 sats \ 6 comments \ @south_korea_ln 1 Nov 2024 science
[Daily puzzle] Simple algebra problem.
1169 sats \ 17 comments \ @south_korea_ln 28 Oct 2024 science
[Not-so-daily puzzle] The Patoshi Key Challenge
755 sats \ 5 comments \ @south_korea_ln 16 Jan 2025 science
[Daily puzzle] \sum_0^{120} \frac{1}{\sqrt{n+1}+\sqrt{n}} = ?
769 sats \ 11 comments \ @south_korea_ln 24 Sep 2024 charts_and_maps