Answer:
You drink half of one and half of another, knowing that half a glass of poison cannot kill you (only a full glass can according to the problem). Then pour the remainder of one glass into the other, and it will seem like you have a full glass of only one type of liquid. (hope this helps <3)
Although it was unsuccessful, the Crusades introduced Europeans to the luxury of the Muslim civilization. When the Crusaders brought home silks, porcelain, spices and other goods, demand for these things in Europe began to grow, especially as the emerging bourgeois class of Europeans became a market for these luxury goods.
Ok I’d say stay more focused