Nounhomework; assignment · pending issue; unresolved problem; open question

Nounquestion (e.g. on a test); problem · problem (e.g. societal, political); question; issue; subject (e.g. of research); case; matter · question (i.e. doubt)

Nountitle; subject; theme; topic · problem (on a test); question · counter for questions (on a test)

Nountopic; subject · much talked about; topical; in the news; hot

Nounsubject; theme; issue; matter · homework; assignment · problem (that needs solving); task; challenge; question