'Twenty' in the Bible

And it cometh to pass, from the day of the dwelling of the ark in Kirjath-Jearim, that the days are multiplied -- yea, they are twenty years -- and wail do all the house of Israel after Jehovah.

And the first smiting which Jonathan and the bearer of his weapons have smitten is of about twenty men, in about half a furrow of a yoke of a field,