Category: potpourri: residents of this country use the baht to buy things =)?

Questions

What is sometimes added to softdrinks to make them sweeter?

What is spain's biggest source of income?

What is stuffed with a sheep's carcass stuffed with chickens stuffed with fish stuffed with eggs?

What is sushi?

What is switching letters (e.g saying jag of flapan instead of flag of japan)?