A Brain Teaser NO ONE will be able to get

[Kenny0829]

Send ALL your coins ( and Bills ) to ME , and I'll let you know which one is the fake, and return it to you.

 

[IJump]

<< littleprince, it's not quite as easy as that since he did say that one of the coins is lighter or heavier than the others.

[edit]: oops, didn't see Haircut's message... but it applies to what IJump said too. >>



Then if on the second weigh, you find they are even, weigh the other group. The other group has the conterfeit. That would add two to the overall. I missed the "or heavier" part of the original problem.


So that would make the total 5 at the most......... hmm...