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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] Find area of white region
2026 sats \ 18 comments \ @south_korea_ln 10 Oct 2024 science
[Daily puzzle] Fill in the blanks
2368 sats \ 20 comments \ @south_korea_ln 29 Oct 2024 science
[Daily puzzle] Simple algebra problem.
1169 sats \ 17 comments \ @south_korea_ln 28 Oct 2024 science
[Daily puzzle] Find the radius of the circle
1947 sats \ 26 comments \ @south_korea_ln 11 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] Diameter of circle
2175 sats \ 13 comments \ @south_korea_ln 14 Oct 2024 science
[Daily puzzle] Tricky system of equations
1119 sats \ 7 comments \ @south_korea_ln 5 Nov 2024 science
[Not-so-daily puzzle] Which one is bigger?
908 sats \ 8 comments \ @south_korea_ln 20 Dec 2024 science
[Daily puzzle] Find the ratio
847 sats \ 8 comments \ @south_korea_ln 26 Oct 2024 science
[Daily puzzle] Light bulb problem
768 sats \ 15 comments \ @south_korea_ln 3 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
[Not-so-daily puzzle] Triangle sequence
874 sats \ 13 comments \ @south_korea_ln 6 Dec 2024 science
[Daily puzzle] is this number rational
1074 sats \ 10 comments \ @south_korea_ln 25 Oct 2024 science
[Daily puzzle] Easy square root
460 sats \ 10 comments \ @south_korea_ln 12 Nov 2024 science
[Daily puzzle] Sum of floors
973 sats \ 4 comments \ @south_korea_ln 8 Nov 2024 science
[Not-so-daily puzzle] Purple area
566 sats \ 15 comments \ @south_korea_ln 13 Dec 2024 science
Joy of Compounding
15.5k sats \ 46 comments \ @CarlBMenger 22 May 2024 bitcoin
[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] Proving a curious equality
1061 sats \ 14 comments \ @south_korea_ln 27 Oct 2024 science
[Daily puzzle] Speed integrating
285 sats \ 1 comment \ @south_korea_ln 9 Dec 2024 science
[Daily puzzle] log of a sum and sum of logs
692 sats \ 8 comments \ @south_korea_ln 16 Oct 2024 science