1. A body of water, smaller than a river, contained within relatively narrow banks? Stream
2. The thing you push around the grocery store? Well, first of all, we don't call it a grocery store, we call it a supermarket. And, it's a shopping trolley. As stolen by small horrible urchins to make a sort of war chariot, as Glizfrau and I discovered when we lived near a supermarket.
3. A metal container to carry a meal in? metal?! If plastic, a lunch box.
4. The thing that you cook bacon and eggs in? Frying pan.
5. The piece of furniture that seats three people? Couch, in my freaky house. I think most people here say sofa, though.
6. The device on the outside of the house that carries rain off the roof? Gutter/ guttering.
7. The covered area outside a house where people sit in the evening? Sit outside in the evening? What madness. Not in this climate, mate. I know they mean a porch, but to us a porch might be a tiny covered in bit outside one's front door, usually built on for insulation purposes.
8. Carbonated, sweetened, non-alcoholic beverages? Fizzy drinks. Or, if being old school, minerals, which is what my grandparents used to say.
9. A flat, round breakfast food served with syrup? I know they mean pancakes, but we don't eat those sort of pancakes.
10. A long sandwich designed to be a whole meal in itself? A baguette or roll.
11. The piece of clothing worn by men at the beach? Togs, shorts or swim/bathing suit
12. Shoes worn for sports? Runners. People are now starting to say trainers, which really annoys me. You're not English , you know! Worse is when middle aged Irish journalists use "sneakers", which is just ridiculous.
13. Putting a room in order? Tidying. What else?
14. A flying insect that glows in the dark? Heavens. Don't have any.
15. The little insect that curls up into a ball? A woodlouse. ugh.
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? See-saw
17. How do you eat your pizza? Cut into slices, and with hands.
18. What's it called when private citizens put up signs and sell their used stuff? Nothing, because no one does it.
19. What's the evening meal? Dinner.
20. The thing under a house where the furnace and perhaps a rec room are? Most people, apart from those who live in vast pre-war houses, don't have any. It would be either a basement or cellar, I suppose.
Added by glitzfrau:
21. Place where you put your towels to dry, above the boiler:Hot press.
22. Piece of cloth with which you wash your face: face cloth
23. Day after Christmas? St Stephen's Day