'Twenty' in the Bible

Then Abner and twenty men with him came to David at Hebron. And David made a feast for Abner and the men who were with him.

You and your sons and your servants shall cultivate the land for him, and you shall bring in the produce so that your master’s grandson may have food; nevertheless Mephibosheth your master’s grandson shall eat at my table regularly.” Now Ziba had fifteen sons and twenty servants.

There were a thousand men of Benjamin with him, with Ziba the servant of the house of Saul, and his fifteen sons and his twenty servants with him; and they rushed to the Jordan before the king.

So when they had gone about through the whole land, they came to Jerusalem at the end of nine months and twenty days.