Unanswered Questions of The Hunger Games

If you read the book before you watched the movie, you were probably able to tell all the differences. If you didn't read the book, you probably had some questions about what was going on.
Forbes collected the top 16 questions that people new to the Hunger Games movie had asked and answered them!

If everyone is starving, why is the bakery up and running? To bake requires flour, eggs, and milk.There’s a small merchant class in District 12. The average family only frequents the bakery on birthdays. The Peacekeepers need to be catered to as well.
Lest you think that Peeta’s family is rich because they have a bakery, his mother hit him for burning two loaves of bread, and he tells Katniss in a private moment that he’s never eaten anything that wasn’t stale and beyond selling.
Why do all the District 12 people give a Nazi-style salute when asked for a show of hands?I’ll take it directly from the book:
“[A] shift has occurred since I stepped up to take Prim’s place, and it now seems I have become someone precious. At first one, then another, then almost every member of the crowd touches the three middle fingers of their left hand to their lips and holds it out to me. It is an old and rarely used gesture of our district, occasionally seen a funerals. It means thanks, it means admiration, it means good-bye to someone you love.”
Is the arena a real place or a Holodeck?It’s real. It’s an outdoor arena, enclosed within a forcefield. After the game ends, the arena is preserved as a tourist destination. Collins writes, “You can even take part in the reenactments.”
If the entire district is fed if Katniss wins, why didn’t they say that in the movie?The movie also didn’t mention the Victor’s Village or the Avox or the many other details that make this book an excellent read.
Did you catch that? That was a hint that you should read The Hunger Games.

Did you watch the movie without reading the book first? What did you think?

Source: Forbes