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[Not-so-daily puzzle] Simplify the expression
390 sats \ 9 comments \ @south_korea_ln 5 Dec 2024 science
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[Daily puzzle] Integral
705 sats \ 11 comments \ @south_korea_ln 31 Oct 2024 science
[Daily puzzle] Tricky system of equations
1119 sats \ 7 comments \ @south_korea_ln 5 Nov 2024 science
[Daily puzzle] Simple algebra problem.
1169 sats \ 17 comments \ @south_korea_ln 28 Oct 2024 science
[Daily puzzle] Fun with geometry
757 sats \ 4 comments \ @south_korea_ln 20 Oct 2024 science
[Daily puzzle] Proving a curious equality
1061 sats \ 14 comments \ @south_korea_ln 27 Oct 2024 science
[Daily puzzle] Magic product puzzle
681 sats \ 11 comments \ @south_korea_ln 15 Oct 2024 science
[Daily puzzle] Find area of white region
2026 sats \ 18 comments \ @south_korea_ln 10 Oct 2024 science
[Daily puzzle] A short break (and some answers)
632 sats \ 4 comments \ @south_korea_ln 19 Oct 2024 science
[Not-so-daily puzzle] Infinite product
358 sats \ 1 comment \ @south_korea_ln 29 Nov 2024 science
[Daily puzzle] Easy square root
460 sats \ 10 comments \ @south_korea_ln 12 Nov 2024 science
Brain Not Braining: Part 4
454 sats \ 13 comments \ @noknees 8 Nov 2025 science
[Daily puzzle] Fill in the blanks
2368 sats \ 20 comments \ @south_korea_ln 29 Oct 2024 science
[Not-so-daily puzzle] Two envelope puzzle
921 sats \ 12 comments \ @south_korea_ln 25 Dec 2024 science
[Daily puzzle] Probability of ending at 1
922 sats \ 27 comments \ @south_korea_ln 7 Oct 2024 science
Bitcoin Beginners Newsletter, Issue 39
1058 sats \ 4 comments \ @siggy47 14 Feb 2025 bitcoin_beginners
Bitcoin Beginners Newsletter, Issue 61
776 sats \ 1 comment \ @siggy47 25 Jul 2025 bitcoin_beginners
[Daily puzzle] log of a sum and sum of logs
692 sats \ 8 comments \ @south_korea_ln 16 Oct 2024 science
[Daily puzzle] No calculator math
833 sats \ 20 comments \ @south_korea_ln 12 Oct 2024 science
[Math puzzle] Fastest route from A to B
543 sats \ 4 comments \ @Scroogey 8 Jan 2025 science
[Not-so-daily puzzle] Area of a diamond
474 sats \ 4 comments \ @south_korea_ln 1 Jan 2025 science
Bitcoin Beginners Newsletter, Issue 26
898 sats \ 3 comments \ @siggy47 18 Nov 2024 bitcoin_beginners