\documentclass[11pt,letterpaper]{article}
\usepackage[lmargin=1in,rmargin=1in,tmargin=1in,bmargin=1in]{geometry}
\usepackage{hw}
% -------------------
% Content
% -------------------
\begin{document}
\homework{1}{MM/DD}
% Question
\prob This is an unnumbered problem.
\ansbox{2.5cm}
% Question 1
\problem This is a numbered problem.
\ansbox{2.5cm}
% Question 2
\problem This is the second numbered problem.
\ansbox{2.5cm}
% Question 3
\pointproblem{5} This problem has several parts:
\begin{enumerate}[(a)]
\item The first part.
\item The second part.
\item The third part.
\end{enumerate}
\ansbox{6cm}
\end{document}