You have 12 black socks and 12 white socks in your drawer. What is the minimum number of socks that you have to take out to make sure that you have a matching pair?
Riddle AnswerMath Riddles
Rickety Rope Bridge
Four people need to cross a rickety rope bridge to get back to their camp at night. Unfortunately, they only have one flashlight and it only has enough light left for seventeen minutes. The bridge is too dangerous to cross without a flashlight, and it’s only strong enough to support two people at any given time. Each of the campers walks at a different speed. One can cross the bridge in 1 minute, another in 2 minutes, the third in 5 minutes, and the fourth takes 10 minutes to cross.
How do the campers cross the bridge in 17 minutes?
Riddle Answer4 Gallons using 3 and 5 Gallon Jugs
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 AnswerFrog 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