You can have <input type="submit" /> in your final question ( ID - 36) which you can use for submit the data.

This button will be automatically shown when Q-36 is displayed.

e.g.

<fieldset class="sectionwrap" id="Q36">
            <legend>Question 36</legend>
            <p>
               Some Question here.
            </p>
            <ol>
                <li>option1</li>
                <li>option2</li>
                <li>option3</li>
                <li>option4</li>
                <li>option5</li>
            </ol>
            <p style="margin-left: -5%">
                <asp:TextBox ID="Q3Answer" runat="server" class="TextBox" />
            </p>
            <input type="submit" Test="Submit" />
        </fieldset>