Spanish language Q&A Forum

I am wondering why in the question "Which of the following expressions are followed by the subjunctive?" the option "Parece que" was marked as incorrect? There is no any information about it in the explanation. However it is followed by the subjunctive, isn't it?

I often hear both forms on the radio… “las noticias que tú deberías saber” as well as “las noticias que debes saber” Can you explain the difference. When is it appropriate to use deber in the present tense to me (you should)

I put '¡no seas tonto!' Is that correct too if the person is male?