"The Bachelorette Problem" (slightly adapted from Tao's Google+ account)
54861
The Three Princesses (distinguishing truth-teller with 1 question)
153328
Alternatives to Dmitri Bertsekas' Introduction to Probability and Sheldon Ross' A First Course on Probability
157750
A reverse birthday problem: no pair out of 1 million aliens shares a birthday; what is their year length?
14505
Birthday-coverage problem
86067
A Variation of the even-town odd-town problem
38037
A problem with my reasoning in a problem about combinations
16482
One of the new search hints is wrong
3930
How do you handle "that that"? The double "that" problem
11296
The Monty Hall problem
62868
Birthday Problem: Difference between Canonical Solution and Approximation
68882
Path to Combinatorics Problem [$1.11$]
113403
Monty hall problem extended.
67593
request: bragging & boasting but all made up of lies
23605
The bikeshed problem and Stack Exchange
96108
Significance of American Mathematical Monthly Problems in Math Grad School Admissions
122063
Tree-planting problem with pagoda functions (from PROMYS)
137515
Understanding the "Birthday Problem"