A little something

First of all, this weekend was marked by the death of my dear computer (yes, the loyal one from the last post). As it is now pronounced clinically dead, I mourn not only my inability to communicate with the cyber world, but also the loss of quite a few courses worth of notes and papers, including some that would be of value for the still upcoming exams. Man...

On a happier note, today during one of my study breaks (more emphasis on "breaks" than on "studying") I came across the following. It presented a bit of a variety and seemed amusing. Oh, did I ever love these things in high school! So here you go:

A puzzle (as seen in Raymond Smullyan's book)

Suppose there are two identical twins: one is a chronic liar, and the other always tells the truth. The truth teller is absolutely accurate in his beliefs, meaning that all true propositions he assumes to be true, and all the false ones to be false, while the other twin is completely inaccurate. The trick is that both twins will have identical answers to the same questions. If asked if it is true that 2 plus 2 equals 4, both will reply "yes". So how can you tell one from the other asking only the "yes" and "no" questions?

Probably most of you have seen this one before, but for me it was a nice little break from English/Accounting/Ref. Theology read.

Happy studying to those who are still slaving away. Patience is a virtue, or so they say...