Общий вопрос: Did Lulu watch a video yesterday?
Разделительный вопрос: Lulu watched a video yesterday, didn't she?
Специальный вопрос: When did Lulu watch a video?
Альтернативный вопрос: Did Lulu watch a video or a film yesterday?
Вопрос к подлежащему: Who watched a video yesterday?