Normal sugar is kosher.
Yes, sugar is Kosher. Everything that grows from the ground is kosher. There's nothing in sugar to make it non-kosher, as long as it doesn't come in contact with other ingredients, or machinery, used in non-kosher products.
Yes and no. There are many recipes that can be made kosher with kosher substitutes.
No kosher salt available
Lemonade is made of lemon juice, sugar, and water all of which are Kosher.
Any relation
At the kosher butcher or grocery store.
Yes. Just buy kosher foods.
Any large grocery chain in Minneapolis should carry it around Passover. Look for the bottlecaps/cartons/cans with a notable yellow mark on them - that is the "Kosher" Coke (made with cane sugar, not corn syrup).
In Elgin, IL, you can buy kosher salami at local kosher grocery stores, such as the Chabad of Elgin, which often has kosher products. Additionally, nearby supermarkets with kosher sections, like Jewel-Osco or Walmart, may also carry kosher salami. It's a good idea to call ahead to ensure availability.
There is such a thing as kosher rice paper. You should try a local food store that specialises in selling kosher food.
No. "Best Kosher" has gone out of production since 2009.
Kraft marshmallow cream is kosher in the US. Otherwise, you could check with kosher food stores for other brands of this product.