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15
Math.TechQA.Club
2026-04-16 15:29:24
81
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Sets for which $a_k^2 = \frac{a_1+\ldots+a_n - a_k}{n-1}$
Published on
16 Apr 2026 - 15:29
#puzzle
207
Views
Puzzle: Betting on basketball games strategy
Published on
26 Mar 2026 - 21:09
#puzzle
#gambling
647
Views
How to find the no of Questions?
Published on
09 Apr 2026 - 8:23
#contest-math
#education
#puzzle
1.8k
Views
Behind which door is the princess?
Published on
13 Apr 2026 - 13:03
#puzzle
272
Views
From a pile of 4 cards, two are drawn.
Published on
14 Apr 2026 - 23:31
#probability
#puzzle
55
Views
I imagined splitting a powerbill was easy...
Published on
14 Apr 2026 - 17:57
#puzzle
278
Views
Explanation of a solved puzzle' solution
Published on
08 Apr 2026 - 23:55
#puzzle
4k
Views
The frog puzzle
Published on
26 Apr 2026 - 10:10
#probability
#intuition
#puzzle
936
Views
The three-coin-flip riddle
Published on
27 Mar 2026 - 4:15
#statistics
#puzzle
#fake-proofs
#paradoxes
306
Views
Defective coin weighing problem and ternary representation when number of coins is not a power of 3
Published on
11 Apr 2026 - 23:47
#number-theory
#elementary-number-theory
#puzzle
#number-systems
8.3k
Views
Basic probability : the frog riddle - what are the chances?
Published on
15 Apr 2026 - 21:06
#probability
#puzzle
314
Views
(Green/blue)-eye logic puzzle. Statement validation
Published on
26 Mar 2026 - 19:15
#logic
#recreational-mathematics
#puzzle
#modal-logic
2.5k
Views
How to arrange these 10 digits to make a correct equation?
Published on
21 Apr 2026 - 21:23
#arithmetic
#puzzle
2.6k
Views
Obscuring squares of Rubik's cube
Published on
25 Mar 2026 - 17:24
#combinatorics
#group-theory
#puzzle
#combinatorial-geometry
#rubiks-cube
301
Views
The rich man and the 1000 casks of wine
Published on
29 Mar 2026 - 22:33
#puzzle
#word-problem
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