>>You have 12 billiard balls. All but one of the billiard balls are of equal weight. The one odd bal :) is either lighter or heavier. You do not know which. You have 3 (balance) scale weighings to determine not only which ball is the odd one but also whether it is lighter or heavier. You must be able to give logic for all possibilies.
>>
>>Good Luck. :)
>
>Another brain teaser...
>You have 27 different section on UT...
>Most of us will choose 'chatter'
>and you choose 'Third party product Visual ProMatrix'
>You must be able to give logic for all possibilies.
>
>:0)
>
>Good Luck! :0)

Sorry, all. Thought I did choose Chatter. Since I don't know anything about 'Third party product Visual ProMatrix', I wouldn't select it intentionally. One brain teaser solved. :)