Dec 9, 2011
Answer to The Barrel
"What you need to do is to tip it on its side just far enough that the water touches the lip of the barrel," Holmes told me. "Then look inside. If any of the bottom of the barrel is visible, then the it is more than empty empty. If any of the side wall is obscured, it is more than half full. IF the water is exactly at the joint, then it is in the precise half-way state."
"And would that be half-empty or half full?" I asked.
Holmes did not deign to reply.
Thank you sherlocksscarfandjohnsjumper for playing along!