'Nine and twenty' in the Bible

And Nahor lived nine and twenty years, and begat Terah:

Hezekiah began to reign when he was five and twenty years old, and he reigned nine and twenty years in Jerusalem. And his mother's name was Abijah, the daughter of Zechariah.

And this is the number of them: thirty platters of gold, a thousand platters of silver, nine and twenty knives,