'Eighty four' in the Bible

and has been a widow [all these years], and is now eighty-four years old.) She has never left the Temple, but worships [God] by fasting [i.e., going without food and/or water for religious reasons] and praying night and day.

Then the [grapes in the] winepress were trampled on outside of the city and blood flowed out of the winepress as deep as the horses' bridles for a distance of one hundred and eighty-four [square] miles.