[Tex/LaTex] Related enumeration inside another enumerate environment

Question

How may I have a enumeration using the enumerate environment from which the inner environment counter relates to the item number which is already there for a previous environment?
Using an [already answered post](Nested enumeration numbering), when I enter the following:

\begin{enumerate}[1),‎label*=\arabic*‎‏), noitemsep]
\item % item number is 1)
Hello
\item % item number is 2)
How are you?
\begin{enumerate}[1), ‎label*=\arabic*‎‏), noitemsep]
\item % item number is 2.1)
I'm fine, thank you!
\item % item number is 2.2)
What about you?
\end{enumerate}
\item % item number is 3)
Good!
\item % item number is 4)
Do you know where is he?
\begin{enumerate}[1., ‎label*=\arabic*‎‏. noitemsep]
\item % item number is 4.1.
No!
\item % item number is 4.2.
Sorry
\end{enumerate}
\end{enumerate}

But I don't get the desired output. What I want is to get something like the figure below, if I enter something like the following:

Answer 1

The enumeration is strange here, therefore I use a new list named strangenumerate

Since label*= cannot be applied here for the deeper nested levels (it prints a ), there are some other strategies:

• Make a conditional on the level of nesting and change the label according to this
• Refer directly to the counter of the current level, i.e. strangenumeratei here.

---

\documentclass{article}



\usepackage{enumitem}

\newlist{strangenumerate}{enumerate}{2}

\setlist[strangenumerate]{noitemsep}
\setlist[strangenumerate,1]{label={\arabic*)}}
\setlist[strangenumerate,2]{label={\arabic{strangenumeratei}.\arabic*)}}
\begin{document}

\begin{strangenumerate}
\item % item number is 1)
Hello
\item % item number is 2)
How are you?
\begin{strangenumerate}
\item % item number is 2.1)
I'm fine, thank you!
\item % item number is 2.2)
What about you?
\end{strangenumerate}
\item % item number is 3)
Good!
\item % item number is 4)
Do you know where is he?
\begin{strangenumerate}[label={\arabic{strangenumeratei}.\arabic*.}]
\item % item number is 4.1.
No!
\item % item number is 4.2.
Sorry
\end{strangenumerate}
\end{strangenumerate}
\end{document}