What are the subject questions for the given sentences?

Here are the subject questions for the sentences provided: 1. Tom usually helps about the house. - Who usually helps about the house? 2. They speak a lot of languages. - Who speaks a lot of languages? 3. The smith works with metal. - Who works with metal? 4. Potters make nice things. - Who makes nice things? 5. They discuss a lot of questions every meeting. - Who discusses a lot of questions every meeting? 6. I usually play tennis with my friends. - Who usually plays tennis with their friends? 7. The competitions take place almost every month. - What takes place almost every month? 8. He goes to the seaside every summer. - Who goes to the seaside every summer? 9. Our headmaster comes to school early. - Who comes to school early?