Hat matching problem: Are the remaining men constrained to not pick their own hats?
47240
An alternate solution to the hat-matching problem, probability of exactly $k$ matches
116153
The Notorious Triangle Problem
21598
A game of guessing a chosen number
71067
Group differences on a five point Likert item
111473
Wear a hat multiple times?
45510
Number of vertices present in all maximum matchings
127311
Challenging probability problem
34133
Mann-Whitney-Wilcoxon Test on highly unbalanced groups.
142016
one to one distinct restriction on selection
25267
The cow in the field problem (intersecting circular areas)
82300
Can a hat be lost if its criteria no longer applies?
50679
Induction problem: "if the group has at least one player who is better than Messi, then all the members of the group are better than Messi"
136449
Combinatorics problem on $20$ people, $12$ months, and distinguishable groups
64511
A weighted version of random.choice
39354
Solving the Travelling Salesman Problem
99810
Maximize violating constraints
42438
Minimizing Gender Regularity in a linear arrangement of boys and girls