These quizzes are designed as pre-holiday fun. The Holiday Quizzes are geography-based, but are suitable for any class (and any teacher!). If in doubt, start with the easy level and work up.
The new-for-2019 Trivia Quiz covers pop culture, politics, environment and more. It's just fun!
Suggested Lesson Plan
Assign a quiz initially in Formative mode, with just one attempt permitted (you have to change the default, which is two). When students have finished, announce a second attempt, with prizes, but allow internet research time before they start. Do this as a separate assignment because otherwise some kids are going to run straight on from the first to the second attempt before you can stop them.
For extra class energy, and greater learning, put them into teams and have the teams do the research together. In this case, give prizes only to the winning teams, not individuals. This way even the weakest students have a reason to try hard - their team might still win!