C502 The Difficulty of Crossing Centuries

"One day, Liang Qi met Old Prophet and wanted to invite him to drink. After that, they came to a wine shop, and in front of a large wine jar, Old Prophet gave Liang Qi a 5 litre and 6 litre wine pot. Old Prophet asked how he could get 3 liters of wine from the wine jar with these two bottles."

When the question was asked, the crowd went into an uproar