\clearpage
\setcounter{theorem}{0}\setcounter{question}{0}\setcounter{figure}{0}
\vspace{3cm}

\begin{center}
{\bf\large TITLE\\}
\vspace{0.3cm}
{\small by YOUR NAME, who proposed the problem} %NAME OF PARTICIPANT PROPOSING THE PROBLEM. IT CAN BE SOMEONE ELSE'S CONJECTURE, JUST PROVIDE A REFERENCE IN THIS CASE. AS THIS IS AN INFORMAL BOOKLET, NO NEED FOR AFFILIATIONS ETC.
\end{center}

% Short description of the context of the problem

\begin{prob}
% the problem
\end{prob}
% a related result:
%The following is from a recent paper of ...
\begin{theorem}
% something you consider important to share in connection with your problem  
\end{theorem}

\begin{prob}
% a 2nd related problem
\end{prob}

%You can have citations, but please pick names that probably won't clash with others'.
\begin{thebibliography}{10}
%\bibitem{EHM1964} P. Erd\"os, A. Hajnal, J.W. Moon. A problem in graph theory. Amer. Math. Monthly, 71:1107–1110, 1964.

\end{thebibliography}