A man developed laryngitis and needed to see a specialist who's office was in a far away city. The problem is that on the way out of his town, the road forks. Neither of the resulting roads are marked. One road leads to the specialist's city while the other road leads you in the opposite direction.
To make matters worse, there are only two people who know which road leads to the specialist and which one leads in the opposite direction. These two people live at the spot where the road forks, and they are identical twins. One twin ALWAYS tells the truth, the other ALWAYS lies.
Since the man's laryngitis is worsening, he wants to ask ONE twin only ONE question in order to determine which road he needs to take.
What is the one question can he ask either twin which will enable him to immediately deduce which road is the correct road to the specialist?
Originally posted by TheBloop A man developed laryngitis and needed to see a specialist who's office was in a far away city. The problem is that on the way out of his town, the road forks. Neither of the resulting roads are marked. One road leads to the specialist's city while the other road leads you in the opposite direction.
To make matters worse, there are only two people who k ...[text shortened]... in which will enable him to immediately deduce which road is the correct road to the specialist?
Which way would your brother say goes to the specialist?
Originally posted by XanthosNZ I think the obvious question is how exactly does this puzzle differ from the various ones in the thread 4 down from this one?
The USEFUL facts are identical. Two options. Two people, one lies and one tells the truth. One question to ask.
Assuming that you mean the questions in the thread
"You probably heard this one but i dont know the... "
Then the ones at the end of the thread are much harder than that!
Originally posted by iamatiger Assuming that you mean the questions in the thread
"You probably heard this one but i dont know the... "
Then the ones at the end of the thread are much harder than that!
Yes, what I'm saying that this puzzle is exactly the same as the first one in that thread. If we wanted to, we could make harder variations of this one as well, but there's not really much point.
Originally posted by XanthosNZ I think the obvious question is how exactly does this puzzle differ from the various ones in the thread 4 down from this one?
I started this thread on Oct 28...the other thread started Nov 6