Javascript Disabled Detected

You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality.

Welcome to BrainDen.com - Brain Teasers Forum

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account.
As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends.

Of course, you can also enjoy our collection of amazing optical illusions and cool math games.

If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top.
If you have a website, we would appreciate a little link to BrainDen.

Thanks and enjoy the Den :-)

Guest Message by DevFuse

Coins

Started by rookie1ja, Mar 30 2007 04:50 PM

«
Prev

Page 6 of 9
4
5
6
7
8

Next
»

This topic is locked

83 replies to this topic

#51 fdfffg

Newbie

Members
1 posts

Posted 17 February 2008 - 07:05 PM

what about
"I exist" ?
the parameters of the riddle fail to negate non defined true statements

but if u say that u are just guarenteed a coin not the gold one
the question says u must get the gold coin

0

Back to top

#52 persival

Newbie

Members
2 posts

Posted 26 February 2008 - 07:33 AM

Spoiler for Here's how I'd go for the gold.

Edited by persival, 26 February 2008 - 07:37 AM.

0

Back to top

#53 Martini

Senior Member

Members
770 posts

Posted 27 February 2008 - 05:14 PM

Spoiler for Here's how I'd go for the gold.
I am logged in at BrainDen.com as 'persival' and I want the gold coin. This statement is true. So, let's have the gold.

Making a true statements guarantees that you will get one coin, but not necessarily the gold one. Requesting that it be gold (which you did in a separate sentence by the way) doesn't help.

0

Back to top

#54 funnyjunk213

Newbie

Members
2 posts

Posted 02 March 2008 - 05:53 AM

why not just ask you will give me the gold coin only?

0

Back to top

#55 Naruto Uzumaki

Junior Member

Members
74 posts

Posted 04 March 2008 - 06:21 PM

Coins - Back to the Logic Problems
Imagine there are 3 coins on the table. Gold, silver and copper. If you say a truthful sentence, you will get one coin. If you say a false sentence, you get nothing. Which sentence can guarantee gaining the gold coin?

Spoiler for Solution
Coins - solution
"You will give me neither copper nor silver coin." If it is true, then I have to get the gold coin. If it is a lie, then the negation must be true, so "you give me either copper or silver coin", which would break the given conditions that you get no coin when lying. So the first sentence must be true.

or you could say "there are 3 coins on the table B))