The five most popular story-related questions about The Feud, Season 1, Episode 2, excluding overall plot and ending, are:

1. Who left the dead magpie in Emma's garden, and what is the significance of the photo and the message "One for sorrow"?
2. What is PC Andi Gallagher's true intention in approaching Emma's daughter online and meeting her?
3. Why did builder Lee start the extension work without the proper party wall agreement and planning permission, and what are the consequences?
4. What is the nature of the tension between Emma, John, Sonia, and Alan during their night out, especially regarding Alan's phone call about having money to get "something" done?
5. How did property developer Terry "fleece" Emma and John, and what impact does this have on their relationships and the extension project?

These questions focus on the episode's key mysteries, character motivations, and conflicts revealed through flashbacks, interactions, and ominous events like the dead magpie.