Suppose there are twin brothers, one which always tells the truth and one which always lies. (So in this case they both know what is true and false, or as you put it, both are accurate in their knowledge.) What one yes-no question could you ask to either one of the brothers to figure out which one he is?
Riddle AnswerLateral Thinking Riddles
27 Balls
Given 27 table tennis balls, one is heavier than the others.
What is the minimum number of weighings (using a two-pan balance scale) needed to guarantee identifying the heavy one? The other 26 balls weigh the same.
Riddle AnswerDark Room
The King’s Thief
A king in England has a jewel, a dog, and a crown. A thief comes in the middle of a night and takes the dog and yet the next day the king reports that he has two missing items. The king said the truth and there was only one robbery that happened. How is this possible?
Riddle AnswerTwo Boxers
Two boxers are in a match scheduled for 12 rounds (Pure boxing only – no kicking, UFC takedowns, or anything else). One of the boxers gets knocked out after only six rounds, yet no man throws a punch. How is this possible?
Riddle Answer