Suppose you want to send in the mail a valuable object to a friend. You have a box that is large enough to contain the object and the box can be fitted with multiple locks.
Both of you also have several locks and their corresponding keys. However, your friend does not have the keys to any of your locks. If you send a key in an unlocked box, there is a danger of theft.
How can you send the object securely to your friend?
Riddle AnswerA scientist puts a bacteria in a petri dish at exactly noon.
Every minute the bacteria divides into two and doubles in size. At exactly 1 PM the petri dish is full.
At what time was the dish half full?
Riddle AnswerThis puzzle has been said to have been invented by Albert Einstein as a boy and some claim that only 2% of the population can solve it.
There are 5 houses in 5 different colors. All the 5 owners are of different nationality. The 5 owners drink different beverages, smoke different brand of cigars, and own different pets. No owners have the same pet, smoke the same brand of cigar, or drink the same beverage.
Who owns the zebra?
Riddle AnswerA man goes into a barber shop and gets a haircut for $15. He pays the barber with a $20 bill, but the barber doesn’t have change. The barber goes to the neighboring flower shop and trades the $20 bill for a $10 dollar bill and two $5 bills. Then he gives the man his $5 in change.
Later the lady from the flower shop confronts the barber and tells him that the $20 bill he gave her was counterfeit money. The barber agrees and he gives the lady a different $20 bill.
Later that day he tries to figure out how much money he lost. How much money did the barber lose?
Riddle Answer