'Twenty' in the Bible

The Israelites cried out for help to the Lord, because Sisera had nine hundred chariots with iron-rimmed wheels, and he cruelly oppressed the Israelites for twenty years.

Now Zebah and Zalmunna were in Karkor with their armies. There were about fifteen thousand survivors from the army of the eastern peoples; a hundred and twenty thousand sword-wielding soldiers had been killed.

He defeated them from Aroer all the way to Minnith -- twenty cities in all, even as far as Abel Keramim! He wiped them out! The Israelites humiliated the Ammonites.

Samson led Israel for twenty years during the days of Philistine prominence.

His brothers and all his family went down and brought him back. They buried him between Zorah and Eshtaol in the tomb of Manoah his father. He had led Israel for twenty years.