Easy Riddles and Answers

 

12.9k views
16 ratings
1 saves

Question: The London Racetrack needs to submit its 3 fastest horses to the Kentucky Derby out of 25 horses. However, all of their information was lost and they don't know any of the horse's times. Similarly, they all look identical so they can't remember who's fastest.

They can only race 5 horses at once, so what is the fewest number of races they can conduct to find the 3 fastest horses?

Answer: 7 races are required.

First you divide the 25 horses into 5 groups of 5. You conduct the 5 races and take all of the fastest horses in those races and have a race with them, giving you the fastest horse. Then you take the remaining 24 horses (excluding the fastest) and remove the 4th and 5th horses in the first set of 5 races (since they definitely have 3 horses faster than them), leaving you with 14 horses. Next you can remove all of the horses that were beat in the preliminary race by the horses that got 4th and 5th in the championship race, leaving you with 8 horses. Finally, you can remove the horses that remain that lost to the 3rd place horse in the final race in the preliminary race and the horse that got 3rd in the preliminary to the horse that got 2nd in the championship race, leaving you with 5 horses.

You can then run a final race where the 1st and 2nd place horses are the 2nd and 3rd fastest. Then you know the 3 fastest horses.

Share this:FacebookTwitterGoogle+

Irresistible (medium)

12k views
15 ratings
0 saves

By Slinger

Question: I can distract you and I can hurt you. You always check me out regularly. What am I?

Answer: Your phone. P.S. It can hurt your eyes.

Share this:FacebookTwitterGoogle+

4.4k views
10 ratings
0 saves

By Kittenlover365

Question: A hill full a hole full you cannot catch a bowl full.

Answer: mist or fog

Share this:FacebookTwitterGoogle+

9.6k views
16 ratings
0 saves

By Zen424

Question: There are 30 cows in a field and 28 chickens....how many didn't?

Answer: 10

Share this:FacebookTwitterGoogle+

4.1k views
14 ratings
0 saves

By Timodrummo360

Question: You wait for it. It cracks, stays for a moment, and then vanishes before your eyes. What is it?

Answer: Fireworks.

Share this:FacebookTwitterGoogle+

Submit Your Riddle

Follow Us

Follow us and get the Riddle of the Day, Joke of the Day, and interesting updates.

Advertise with us!

© 2013-2014 Good Riddles Now. All rights reserved.

FacebookTwitterGoogle+RSS Feed