Hello Every Body, i hope u all in perfect situations


Iam not really good in introduction so i'll go straight in the point
this topic is about "why" and its about small quizs

i ask something and u think about the answer and the One who hit it right
will ask another and so on....after one day i'll answer if no1 knws the answer ^^ good luck

i HOPE U'LL ENJOY THE GAME
but stick this to ur mind [all in english], lets start

We have 10 Bottles all filled with coins
and Each COIN is 10gm wieght
Except for one Bottle, the wiegth of the coins in that bottle
is only about 9gm, how we can select this bottle
?

External Help: there is a Balance and we can Use it Only Once