All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info
Home > Logic
Logic problems. The solution to these problems does not usually require a lot of math, but will take some thinking until you find the right approach.
Sub-Categories (All Problem Categories)
> Liars and Knights> Weights and Scales
Difficulty: 3 of 5 Latest: Hat #11
Three logicians, A, B, and C were each wearing a hat displaying a positive integer, - the number visible only to the participants not wearing the corresponding hat.
They were told the number on one of the hats is the sum of the other two.

After a statement by A that he does not know his number, B declared that he is wearing a hat with number 15 - and indeed he was right.

a. What were the other 2 numbers and what reasoning was applied?
b. What triplets of numbers make such discovery possible?

(Solution Posted, 3 Comments) Submitted on 2016-07-27 by Ady TZIDON   
Page 1 of 39   next >>    
Difficulty: 3 of 5Rocking moves | Rating: 5.00
Posted on 2016-05-17 by Ady TZIDON (Solution Posted, 3 Comments)
Difficulty: 3 of 5Tanya's puzzle | Rating: 4.00
Posted on 2016-05-10 by Ady TZIDON (No Solution Yet, 10 Comments)
Difficulty: 2 of 5Think it over |
Posted on 2016-04-27 by Ady TZIDON (No Solution Yet, 6 Comments)
Difficulty: 3 of 51-2-3 Remainder Resolution | Rating: 4.50
Posted on 2016-02-16 by K Sengupta (No Solution Yet, 12 Comments)
Difficulty: 3 of 5Family tree | Rating: 5.00
Posted on 2016-01-15 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 2 of 5Expose ambiguity | Rating: 3.00
Posted on 2016-01-13 by Ady TZIDON (No Solution Yet, 5 Comments)
Difficulty: 3 of 5ABCD Grid |
Posted on 2015-12-16 by Charlie (Solution Posted, 1 Comments)
Difficulty: 3 of 5….to skin a cat |
Posted on 2015-11-09 by Ady TZIDON (No Solution Yet, 5 Comments)
Difficulty: 2 of 5Get 010101 | Rating: 3.00
Posted on 2015-09-30 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Cheryl's b-day |
Posted on 2015-09-24 by Ady TZIDON (Solution Posted, 2 Comments)
Difficulty: 3 of 5Marissa's and Melissa's birthdays |
Posted on 2015-09-17 by Math Man (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Hockey pucks |
Posted on 2015-08-25 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Positive Integer and Power Puzzle |
Posted on 2015-08-10 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Red, White, and Blue | Rating: 4.00
Posted on 2015-07-29 by Bractals (Solution Posted, 4 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 (9)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2016 by Animus Pactum Consulting. All rights reserved. Privacy Information