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15
Math.TechQA.Club
2026-04-10 19:00:04
266
Views
Proof for "coin sharing" game
Published on
10 Apr 2026 - 19:00
#combinatorics
#puzzle
494
Views
hats at party problem: number of times people throw their hats... until they all get their own hats back?
Published on
11 Apr 2026 - 0:42
#probability
#puzzle
183
Views
Clarification on eye color island puzzle; how can a blue eyed person deduce themselves to be blue eyed?
Published on
11 Sep 2019 - 3:10
#logic
#puzzle
34
Views
Finding the smallest set containing sums of pairs from the set
Published on
24 Mar 2026 - 23:46
#combinatorics
#optimization
#puzzle
#compression
56
Views
Number of muffins that can be eaten in three hours. 4 variables.
Published on
26 Mar 2026 - 17:37
#algebra-precalculus
#puzzle
#word-problem
73
Views
Puzzle asked in Interview
Published on
09 Apr 2026 - 13:34
#puzzle
131
Views
Eight distinct integer values between $1$ and $8$ satisfy six simple conditions ($D+E=F$, etc). Find which value is which.
Published on
09 Apr 2026 - 0:54
#linear-algebra
#puzzle
#cryptarithm
279
Views
Math riddle about 4 cups
Published on
11 Apr 2026 - 13:42
#puzzle
9.9k
Views
Two trains move towards each other, a bird moves between them. How many trips can the bird make?
Published on
30 Mar 2026 - 5:29
#limits
#arithmetic
#puzzle
49
Views
Make an equation true by moving one of the cards
Published on
21 Sep 2019 - 17:29
#puzzle
161
Views
Guessing the number of other $1$'s in a binary sequence
Published on
27 Mar 2026 - 2:59
#discrete-mathematics
#recreational-mathematics
#puzzle
#information-theory
#coding-theory
101
Views
Mathematical expression to represent puzzle box solution sequence
Published on
12 Apr 2026 - 0:11
#group-theory
#finite-groups
#recreational-mathematics
#puzzle
63
Views
Will I win or lose money if I toss 2 coins for many times?
Published on
29 Mar 2026 - 7:29
#probability
#recreational-mathematics
#puzzle
879
Views
How many HH pairs appear in a 100-coin toss sequence?
Published on
23 Sep 2019 - 22:16
#probability
#probability-theory
#puzzle
705
Views
Binary Probability Question / Riddle
Published on
29 Mar 2026 - 22:35
#probability
#puzzle
#binary
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