You can create quizzes and join them. When creating, provide question names, option names, and correct answers. The questions aren't displayed on joiners' screens; make sure joiners can see host's screen for questions and choices.
This project is supposed to somewhat resemble Kahoot! When joining, type game code but only press enter when "Time Left" (on host's screen) reaches 1. This project runs offline, too, because the answers are embedded in the game code.