¿Cuándo juegan?
This means when do they play. Putting ellos in the sentence is not necessary.
Answer:
Vivir = Live
Estar = Be
Ser = To be
Noruega te hace sentir viva
This translates to “Why is Chapter 3 called "Nobody's Letters"?. I’m pretty sure you’d just have to read the text and figure out why the author chose to name it this.