What About A Gross Amount of Eggs And A Prison Bus? WARNING: BAILEY SCREAMS

WARNING: BAILEY SCREAMS AT MINUTE 35 AND 34 SECONDS.Are you a coffee or tea person? Are you an olive person? Wait, HELP. We're officially asking all mathematicians and riddle lovers, please come together and help us understand what a gross means and while you're at it, do prison buses have emergency exits? Thanks... it is genuinely bothering us, and we have a lot of follow up questions.