#### Trending Tags

#### Popular Searches

Answer This A Man Riddles Convection Currents Are Produced In My Layer Who Am I Riddles Digetive Riddles How Can You Make Sure To Start A Fire With Two Sticks Riddles If Its Information You Seek Come And See Riddles Loves Riddles Multiply Me By 7 Then Subtract 17 If You Subtract 10 And Then Add 5 You Get 20 What Number Am I Riddles Multistory Building Riddles Tattoo Riddles The Teacher Is Yelling She Shuts The Door And The Window What Does She Forget To Shu Riddles What Did The Rider Say When He Cheated The Taxi Driver Out Of His Money Riddles What Kind Of Turtle Likes Things Fast Riddles What Wife Gives To Husband On Riddles When Is Your Uncles Sister Not Your Aunt Riddles Why Are There No Living Cats In Mars Riddles

Feel free to use content on this page for your website or blog, we only ask that you reference content back to us. Use the following code to link this page:

Terms · Privacy · Contact
Riddles and Answers © 2019

## An Absentminded Philosopher Riddle

An absentminded philosopher forgot to wind up the only clock in his house. He had no radio, television, telephone, internet, or any other means of ascertaining the time. He therefore decided to travel by foot to his friend's house, a few miles down a straight desert road. He stayed there for the night and when he came back home the following morning, he was able to set his clock to the correct time. Assuming the philosopher always walks at the same speed, how did he know the exact time upon his return? Note: this is not a trick question. The Philosopher did not bring anything to his friend's house, nor did he bring anything back with him on his trip home.

Hint: We can assume that the journey to his friend's and back took exactly the same amount of time.

He Philosopher winds the grandfather clock to a random time right before leaving, 9:00 for example. Although this is not the right time, the clock can now be used to measure elapsed time. As soon as he arrives at his friend's house, the Philosopher looks at the time on his friend's clock. Let's say the time is 7:15. He stays overnight and then, before leaving in the morning, he looks at the clock one more time. Let's say the time is now 10:15 (15 hours later). When the Philosopher arrives home, he looks at his grandfather clock. Let's say his clock reads 12:40. By subtracting the time he set it to when he left (9:00) from the current time (12:40) he knows that he has been gone for 15 hours and 40 minutes. He knows that he spent 15 hours at his friends house, so that means he spent 40 minutes walking. Since he walked at the same speed both ways, it took him 20 minutes to walk from his friend's home back to his place. So the correct time to set the clock to in this example would therefore be 10:15 (the time he left his friend's house) + 20 minutes (the time it took him to walk home) = 10:35.

YES NO

*Did you answer this riddle correctly?*YES NO

## Add Your Riddle Here

Have some tricky riddles of your own? Leave them below for our users to try and solve.