'Twenty' in the Bible

And there came a man from Baal-shalishah, and brought the man of God bread of the first-fruits, twenty loaves of barley, and fresh ears of corn in his sack. And he said, Give to the people that they may eat.

In the fifty-second year of Azariah king of Judah, Pekah the son of Remaliah began to reign over Israel in Samaria, for twenty years.

Ahaz was twenty years old when he began to reign; and he reigned sixteen years in Jerusalem. And he did not what was right in the sight of Jehovah his God, like David his father,