“How old are your daughters?” Fred asked a friend one day.
“The product of their ages is 36,” replied his friend.
“You are not giving me enough information,” protested Fred.
“The sum of their ages is the age of your oldest son.”
“I still need more information.”
“All right, then. I can tell you that the oldest daughter, who is at least a year older than the other two, is a very fine pianist.”
“Ah! Now I know how old your daughters are.”
What are the ages of Fred’s friend’s daughters?
Click here for the solution
The sister’s ages are 2, 2, and 9.
How can this be?
A certain large animal lives happily and thrives here on Earth. One day, every single one of these critters is wiped out by a mysterious disease which affects only this particular animal. There are none left anywhere on earth -- they are all gone. About a year or so...
How old is Mike?
David and Mike are brothers. David is 33 years old today. This is three times as old as Mike was when David was the age that Mike is today.How old is Mike?Mike is 22 years old.more riddlesDonec rutrum congue leo eget...
How many – how much?
The engineering department was arranging for a rather expensive catered lunch to bid farewell to their retiring colleague. They calculated that it would cost each person $30. One good mathematician remarked, "It's lucky that there aren't five fewer of us to split the...
Two barrels contain each the same amount of water. The water temperature in one barrel is 49°F while the other is at 29°F. Two golf balls of same dimension and weight are dropped simultaneously into the barrels. The golf balls are dropped from the same height.Which...