Как задать вопрос к предложению my brother and i want to go to the stadium

Did my brother and I want to go to the stadium?

Смотря какой вопрос Вам нужен. Все варианты:
1.Who want yo go to the stadium?
2. What do your brother and you want?
3. Your brother and you want to go to the stadium, don`t you?
4. Do your brother and you want to go to the stadium or to the cinema?