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[Daily puzzle] No calculator math
833 sats \ 20 comments \ @south_korea_ln 12 Oct 2024 science
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[Daily puzzle] Easy square root
460 sats \ 10 comments \ @south_korea_ln 12 Nov 2024 science
[Daily puzzle] Simple algebra problem.
1169 sats \ 17 comments \ @south_korea_ln 28 Oct 2024 science
[Not-so-daily puzzle] Which one is bigger?
908 sats \ 8 comments \ @south_korea_ln 20 Dec 2024 science
(999^2 - 1)/998
860 sats \ 21 comments \ @south_korea_ln 23 Sep 2024 charts_and_maps
[Not-so-daily puzzle] Playing with exponents
541 sats \ 1 comment \ @south_korea_ln 27 Dec 2024 science
[Daily puzzle] Fill in the blanks
2368 sats \ 20 comments \ @south_korea_ln 29 Oct 2024 science
[Daily puzzle] Find area of white region
2026 sats \ 18 comments \ @south_korea_ln 10 Oct 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] Fun with geometry
757 sats \ 4 comments \ @south_korea_ln 20 Oct 2024 science
[Daily puzzle] Find the radius of the circle
1947 sats \ 26 comments \ @south_korea_ln 11 Oct 2024 science
[Not-so-daily puzzle] A short one
53 sats \ 6 comments \ @south_korea_ln 17 Apr 2025 science
[Not-so-daily puzzle] Two envelope puzzle
921 sats \ 12 comments \ @south_korea_ln 25 Dec 2024 science
[Not-so-daily puzzle] Triangle sequence
874 sats \ 13 comments \ @south_korea_ln 6 Dec 2024 science
[Not-so-daily puzzle] Sudoku puzzle
339 sats \ 3 comments \ @south_korea_ln 3 Dec 2024 science
[Daily puzzle] Another MSM puzzle
717 sats \ 10 comments \ @south_korea_ln 18 Oct 2024 science
[Daily puzzle] Magic product puzzle
681 sats \ 11 comments \ @south_korea_ln 15 Oct 2024 science
[Not-so-daily puzzle] Nested roots
400 sats \ 9 comments \ @south_korea_ln 19 Dec 2024 science
[Not-so-daily puzzle] A fun geometry puzzle
405 sats \ 11 comments \ @south_korea_ln 15 Jan 2025 science
[Daily puzzle] A MSM puzzle
660 sats \ 11 comments \ @south_korea_ln 17 Oct 2024 science
[Daily puzzle] log of a sum and sum of logs
692 sats \ 8 comments \ @south_korea_ln 16 Oct 2024 science
[Daily puzzle] Find the ratio
847 sats \ 8 comments \ @south_korea_ln 26 Oct 2024 science