classic puzzles

I'm curious about how many people pick the correct answer to the Monty Hall problem when they first hear about it, so only answer the poll if you hadn't heard about the Monty Hall problem until now (and no looking up the answer before you respond). There are a couple of threads about this...

In case you haven’t heard of the “Monty Hall” game it goes like this . . . You attempt to make the correct choice from three random options (only one is correct). After you make your choice one of the remaining choices is revealed as being incorrect. You are then asked if you want to retain...

I've just taken the Bang goes the Theory Big Risk Test. All answers were multiple choice. One of the questions was as follows: I picked the answer nearest to the one I calculated from those available (95%, 83%, 17% and 5%, IIRC): The value I calculated was... Have I missed something or...

I apologize if this has been asked before but my search didn't find what I was looking for. I'm sure many already know what this is, but I'll restate: The answer is that you should switch as it doubles your odds of winning the car from 1/3 to 2/3. Here is my problem and I follow up with the...

Perhaps this very example has been done before on this forum, but I haven't discovered it ... so let me give it a try. I actually saw this play out as described, which is why it started me thinking if the contestant actually went with the best course of action. It was on the game show Who Wants...

3 friends check into a hotel the room rate is 30 dollars so each of the friends pays 10 dollars each. after they have gone up to thier room the manager realizes the room is actually 25 dollars and she has over charged the 3 friends so she sends a bellboy up to thier room with a 5 dollar refund...

I know most of you are familiar with this one already, but we must settle it once and for all... Monty presents 3 doors; behind one is a car, and behind the other two are goats. You pick a door. But before Monty opens that door, he reveals behind another door that there is a goat. He then gives...

One of my roomates came up with this logic puzzle. I've seen the solution, so it does exist. However, the solutions that he has been given are not optimized. So, try your hand at it: ============================ There is a king and there are his n prisoners. The king has a dungeon in his...

Im sure some of you have come across this before..but i was fascinated by the debate surrounding this. Somehow, both sides of the discussion seem to make sense.... Heres the question. You've got three doors.. Behind two of them is a goat, the other a car You choose one door to open....but...