The questions are super USA specific
This game is very much targeted for American users. It is super localized. As an European it’s hard to answer questions where measures are in feet, or just are super USA specific. The funniest so far was the football (soccer as you call it) questioning, all was super basic except the question about what USA team did Beckham play for. Or the questions about country flags - it’s ridiculous to ask what’s on the state flag of Nebraska and then which’s the Russian, Mexican etc. flag. You should do some some localization/globalization of the app.