Надо задать 5 вопросов к этому предложению: My teacher told us some interesting facts before the visit.

1. Did my teacher tell us some interesting facts before the visit? 2. What did my teacher tell us before the visit? 3. Did my teacher tell us some interesting facts before the visit or not? 4. My teacher told us some interesting facts before the visit, didn't she? 5. Who did tell us some interesting facts before the visit.?