Recent content by michael5311

If the prisoner at the back (number 30) is altruistic enough to save the prisoner in front of him (number 29) as described in post #12 then number 29 has a choice: He can either use that information to save himself OR he can do the same favor for number 28. Using that method at most 15...

I agree with belliot if he didn't have $30 to make change for the 100, then he couldn't pay back the baker. He only has $70 cash. But assuming he borrowed another $30 or wrote a check, then his loss is certainly $100 and kittle knight has the simplest explanation.

this is traditionally known as the riddle of the Sphinx The Sphinx would not let a traveller pass unless he could answer the riddle. I don't remember who it was that first solved the riddle (according to the myth)