<< Here's a variation of a common riddle:
You are visiting an island on which two tribes of natives live. One tribe has black soles and always lies; the other tribe has white soles and always tells the truth. There are three natives standing near you. You can't see the bottoms of their feet, and indeed you find out it is extremely rude to look at another's soles, but you are curious so you ask the first man, "Sir, what color are your soles?" Now he happens to understand English, but he can't speak it, so he replies in his native tounge, "Glub Glub". You turn to the second man and ask, "Sir, what did he say?" The second man replies, "He said he had white soles" Now to be sure, you turn to the third and ask, "Sir, what color of soles does this second man have?" The third man replies, "Sir, he has black soles." Now the question is, what color of soles does the third native have? >>
The first man would never say "My soles are black". Because if they are black, then he's a liar and would say they are white. And if they are white, then he tells the truth and so said "they are white".
So we know either way the first man said "Mine are white".
Since second man tells you "He Said he has white soles", and we know the first man did not say "My soles are black" we can conclude the second man has white soles.
The second man has white soles, but the third man told us he has black soles. Therefore the third man is a liar, and thus has black soles.
<< Some of you will be familiar with these.. if you are, please give someone else a try!
I love this author and I love his mind!
-----------------
This thing all things devours:
Birds, beasts, trees, flowers;
Gnaws iron, bites steel:
Grinds hard stones to meal;
Slays king, ruins town,
And beats high mountains down.
-----------------
What is this "thing"? >>
Time.
I can't think up a good riddle, so someone else go ahead.