All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info
Home > Logic > Liars and Knights
These problems are from a very large set of questions about Liars who always lie about everything, and Knights who always tell the truth. Some questions also involve Knaves - people who strictly alternate between lying and telling the truth. (They are of course all indistinguishable from one another by outward appearance, and you must use logic to determine who's who.)
Difficulty: 3 of 5 Latest: The trio
You meet a trio of people, A, B, and C. You know that one of them is a knight, one is a liar, and one is a normal, but you are not sure which is which. Normals tell the truth and lie at random. You are allowed to ask three yes-or-no questions. What three questions can you ask to find out which is which?
(No Solution Yet, 1 Comments) Submitted on 2017-08-21 by Math Man   
Page 2 of 12   << prev next >>    
Difficulty: 2 of 5A Chamsonel Problem VI |
Posted on 2014-05-01 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Wallet Wangle | Rating: 5.00
Posted on 2014-04-24 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 3 of 5A Chamsonel Problem V | Rating: 1.00
Posted on 2014-03-27 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Liars Logic 2 |
Posted on 2014-03-17 by tomarken (Solution Posted, 2 Comments)
Difficulty: 3 of 5Liars Logic |
Posted on 2014-03-13 by tomarken (Solution Posted, 1 Comments)
Difficulty: 3 of 5Neighbor Ponder |
Posted on 2014-02-25 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Tribe Travail |
Posted on 2014-01-21 by K Sengupta (No Solution Yet, 3 Comments)
Difficulty: 2 of 5Which is Which III |
Posted on 2014-01-20 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 2 of 5Five Natives |
Posted on 2013-11-04 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 2 of 5Knaves! 2 | Rating: 1.00
Posted on 2013-10-22 by Math Man (Solution Posted, 1 Comments)
Difficulty: 3 of 5Crime Commitment Conclusion II | Rating: 3.00
Posted on 2013-09-12 by K Sengupta (Solution Posted, 7 Comments)
Difficulty: 3 of 5Crime Commitment Conclusion | Rating: 3.50
Posted on 2013-08-12 by K Sengupta (No Solution Yet, 6 Comments)
Difficulty: 3 of 5Thief Visualization |
Posted on 2013-06-05 by K Sengupta (Solution Posted, 1 Comments)
Difficulty: 2 of 5Race Winner | Rating: 2.00
Posted on 2013-05-28 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 2 of 5Veracity Verification | Rating: 1.50
Posted on 2013-04-15 by K Sengupta (No Solution Yet, 2 Comments)
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information