Where did you grow up: Sort of west-London-ish
What do you call ...
1. A body of water, smaller than a river, contained within relatively narrow banks?
If it's functionally/topologically similar to a river, then it's a stream.
2. The thing you push around the grocery store?
The staff? The spouse? A supermarket trolley, sometimes a shopping trolley.
3. A metal container to carry a meal in?
A biscuit tin? A mess tin? A billy-can?
Maybe a lunchbox, but lunchboxes are seldom metal.
4. The thing that you cook bacon and eggs in?
I'm tempted to say "kitchen", but I won't. In the school scout group, these were called "dog-turds" because of a long and involved reason which this post is too small to contain. I think the answer the meme is seeking is "frying-pan".
5. The piece of furniture that seats three people?
Bed. Sofa. Occasionally couch.
6. The device on the outside of the house that carries rain off the roof?
7. The covered area outside a house where people sit in the evening?
We don't do that here, this is England.
8. Carbonated, sweetened, non-alcoholic beverages?
Pop. Sometimes <xxx>ade -- lemonade, cherryade ...
9. A flat, round breakfast food served with syrup?
Muffin? Crumpet? Drop-scone?
10. A long sandwich designed to be a whole meal in itself?
11. The piece of clothing worn by men at the beach?
Overcoat. Remember, this is England.
12. Shoes worn for sports?
Depends on the sport. In my case, probably walking-boots. Those mad fools who do active sports might wear trainers.
13. Putting a room in order?
Tidying up. Not something I usually do.
14. A flying insect that glows in the dark?
15. The little insect that curls up into a ball?
There are many of these. The most common is a woodlouse.
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?
17. How do you eat your pizza?
The vendor cuts it up into slices with radial cuts, approximately four to six inches apart measured around the circumference -- so there are typically between four and eight slices. I pick up a slice with my fingers and put the pointed end (originally located at the centre of the pizza) into my mouth and bite off some convenient amount. In due course I'm left with the crust -- if this is stuffed, all well and good. If not, then I look around for a small plastic pot of dip with which to help it down.
18. What's it called when private citizens put up signs and sell their used stuff?
A sale. Dur.
19. What's the evening meal?
At four, High Tea. At six, Tea. At eight, Dinner. At ten, supper. At midnight, a midnight snack. At 2am, a kebab.
20. The thing under a house where the furnace and perhaps a rec room are?
If it's a single room, a cellar -- particularly if it's accessed with a ladder. If it's accessed by stairs, a basement.
However, if it's five or six rooms connected by corridors and accessed by an extension of the service stairs or the back lift, then it becomes the cellars.
21. An unusually heavy rain which does not last long?
A downpour, a shower.
22. A window covering on rollers that pulls down?
23. A new, limited access, multi-lane road?
A road. If by "limited access" you mean no push-bikes and no learner-drivers, then it's a motorway. In Reading, it's the IDR, in Coventry it's The Ring Road.
24. Heavy garments worn for work?
25. The area in the house where people usually sit?
It depends. The sitting-room, the lounge. The Front Room is the room we never use, unless we have Visitors or there's a funeral today.
26. What do you call a drink made of ice cream put through the blender?
*blank look* Oh, you mean the liquidiser? That's a milkshake.