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avatar+1694 

You have an equal-arm balance scale and twelve solid b***s. You are told that one of the b***s has a different weight from all the others, but you do not know whether it is lighter or heavier. You can weigh the b***s against each other in the scale balance. Can you find the odd ball and tell if it is lighter or heavier in only three weighings?

 May 26, 2015
 #1
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It takes me a maximum of 4 weighings.     (could get lucky and do it quicker)

 May 27, 2015

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