You have two jugs. One holds exactly 3 gallons and the other 5 gallons of water. You have unlimited supply of water. How do you fill 4 gallons of water into the five-gallon jug?
Riddle AnswerMath Riddles
Frog in 30 Meter Well
A frog is at the bottom of a 30 meter well. Each day he summons enough energy for one 3 meter leap up the well.
Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards.
How many days does it take him to escape from the well?
Riddle AnswerThe Lucas Ship Problem
“Every day at noon,” Lucas said, “a ship leaves Le Havre for New York and another ship leaves New York for Le Havre. The trip lasts 7 days and 7 nights. How many New York-Le Havre ships will the ship leaving Le Havre today meet during its journey to New York?
Riddle Answer