'Twenty' in the Bible

Now [at another time] a man from Baal-shalisha came and brought the man of God bread of the first fruits, twenty loaves of barley bread, and fresh ears of grain [in the husk] in his sack. And Elisha said, “Give it to the people [affected by the famine] so that they may eat.”

Ahaz was twenty years old when he became king, and he reigned sixteen years in Jerusalem. He did not do what was right in the sight of the Lord his God, as his father (ancestor) David had done.