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Classes! REX! Politics! Science! (Vlog and a Riddle) You have 2012 jars of 1-kg mollusks, with 2012 1-kg mollusks in each jar....

. How can you identify the jar of empty mollusk shells by performing only ... the mollusks, you may open the jars and you may remove mollusks from the ...
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There are two solutions. The meaning of