What's hidden in this place?

What do one Mushroom and one Fire Flower cost at the shop in Petalburg? Total!

What is the name of the mayor of Petalburg?

Where is the Crystal Star?

How can one get from Petal Meadows to Rogueport?

Which of the following characters live in Petalburg? 

What number question is this?

This is a recreation of the 65th Trivia Quiz-Off from Paper Mario: The Thousand-Year Door. Photo credit to Mario Wiki and for listing all of these questions. Questions and responses are taken from the Nintendo Switch version.