Re: Puzzle

[Dinh Thi Thanh Huong <huong@haiti.cs.uni-potsdam.de>]

One solution is: You ask them "Does An lie?"
An would certainly answer "No", his brother would answer "Yes"

Cheers, Huong

On Wed, 2 Jul 1997, Dang Hung Thang wrote:

> Cha`o ca'c ba'c quan ta^m to+'i mu.c Gia?i tri' Toa'n ho.c
> Do Ngoc Minh gave a nice answer to the Politican Puzzle. Here is
> another puzzle which is simple but not very easy.
>               The twin brothers
> There are twin brothers one of the two is named An. One lies and one tells
> the truth. How can you discover which brother is An by asking them ONE
> THREE-WORD QUESTION ?
> Cheers
> Thang
>