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 AnswerGood Riddles
Though I Should Be Unique
Though I should be unique, you’ve made most of us the same. I would be stronger if my characters were stranger. What am I?
Riddle AnswerMagic Grass
At a garden shop they’re selling Magic Grass, a patch of sod that doubles in size every day. A man goes to buy some and figures that his garden is big enough that if he buys one patch, it will cover his garden in 14 days, because each day it doubles in size. So he decides to speed up the process, and buys two patches of sods.
How many days will it now take for the Magic Grass to cover his garden?
Riddle AnswerOracle at Temple
A man went to a temple to find an Oracle. When he arrived, he saw that there were two identical people standing in the temple, both wearing the exact same thing.
The two men told the man that if he wanted his future read, he would have to do something first. They told him that only one of them was the real Oracle and that he had to figure out which is which. They also added that one of them only tells lies while the other only tells the truth and the man could only ask them one question.
What question does the man ask?
Riddle AnswerThe 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 Answer