Задать общий, специальный, альтернативный, разделительный вопросы и вопрос к подлежащему из предложения: alexander and his friends are planning to visit several scandinavian countries.

1 Are Alexander and his friends planning to visit several Scandinavian countries?
2 Are Alexander and his friends planning to visit several Scandinavian or Italian countries?
3 Alexander and his friends are planning to visit several Scandinavian countries, aren't they?
4 Who is planning to visit several Scandinavian countries?
5 What countries are they planning to visit?