The Bottles
You have 2 bottles, of which the first is filled half way with wine, and the other, half way with water.
First you pour 1 dl from the water-bottle into the bottle containing wine.
Next, you pour the same amount, 1 dl, of water-wine back into the water-bottle.
Question: Does the water-bottle contain more wine than the wine bottle contains water, or vice versa ?
