1. A body of water, smaller than a river, contained within relatively narrow banks? A creek (pronounced like "creak")
2. What the thing you push around the grocery store? a cart or buggy
3. A metal container to carry a meal in? lunchbox
4. The thing that you cook bacon and eggs in? frying pan or skillet
5. The piece of furniture that seats three people? Couch.. It wasn't until much later in my life that I started to differentiate between couch and loveseat.. and then only when in "polite" company.
6. The device on the outside of the house that carries rain off the roof? gutter
7. The covered area outside a house where people sit in the evening? porch
8. Carbonated, sweetened, non-alcoholic beverages? Coke. When I moved to Michigan, I was vociferously educated that it is called 'Pop' in the midwest, so now I call it Pop or Soda.
9. A flat, round breakfast food served with syrup? Pancake.. or waffles, if a waffle iron was used.
10. A long sandwich designed to be a whole meal in itself? Sub
11. The piece of clothing worn by men at the beach? Swim suit or trunks
12. Shoes worn for sports? Tennis shoes
13. Putting a room in order? Cleaning
14. A flying insect that glows in the dark? Fireflies
15. The little insect that curls up into a ball? Roly-Poly or pillbug
16. The children's playground equipment where one kid sits on one side and goes up while the other sits on the other side and goes down? teeter-totter
17. How do you eat your pizza? Normally with my fingers. Fork is applied if eating with fingers would result in wearing it.
18. What's it called when private citizens put up signs and sell their used stuff? Yard sale, although I've heard them called many things.
19. What's the evening meal? Dinner or Supper.
20. The thing under a house where the furnace and perhaps a rec room are? The basement.
I'm kind of interested to see what people in different parts of the country/world call these...