11
votes
8answers
307 views
+100

Understanding the solution of a riddle about lions and sheep.

I heard a riddle once, which goes like this: There are N lions and 1 sheep in a field. All the lions really want to eat the sheep, but the problem is that if a lion eats a sheep, it becomes a sheep. ...
2
votes
2answers
95 views

Formal approach to (countable) prisoners and hats problem.

I've found this nice puzzle about AC (I'm referring to the countable infinite case, with two colors). The puzzle has been discussed before on math.SE, but I can't find any description of what is ...
3
votes
1answer
111 views

Simple tax puzzle

I recently saw some post on facebook whining about taxes. Simplifying it (and changing numbers, facts, etc.), this was saying: For each dollar an employer wants to pay you: 20% go in taxes that ...
35
votes
6answers
2k views

A variant of the Monty Hall problem

Everybody knows the famous Monty Hall problem; way too much ink has been spilled over it already. Let's take it as a given and consider the following variant of the problem that I thought up this ...