Do you know what these things are?

It has come to my attention that there are a few everyday things in my life that other people don't have, or simply haven't heard of. So, out of curiosity, how many of these things have you heard of?
(Pretty much all of these will be food.)

1. Cornish Wafers
2. Jaffa Cakes
3. Margherita Pizza
4. Bourbon Biscuits
5. Yorkshire Puddings
6. Cadburys
7. Socks
8. Custard Creams
9. Cheerios

I'm assuming most of you know what socks are but I've put them on the list anyway.

I've heard of

5
7
8
9

Have you ever had any of them? (apart from the socks)

I've had all of em but 8. I love cheerios, they are the best.

I haven't had cheerios in ages.

I have heard of 2, 3 and 7 I think.

I've heard of 5, 6, 7, 8, and 9, but I've never had Yorkshire puddings or Custard Creams as I believe they are a British thing? And I've never been to Britain, so I've just heard about them through British TV/books.

I've heard of 3 4 5 6 7 8 and 9 but I haven't had them all

I've eaten most (but not all) of 5, 7, 8, and 9. I've heard of a couple more and can infer what almost all of them are.

Yes to the below:

3. Margherita Pizza (yummy)
5. Yorkshire Puddings (SO YUMMY)
6. Cadburys (used to get chocolate covered fingers from that brand I think)
7. Socks (hello..?)
9. Cheerios

Also, I've been curious about a few things myself, so I'll ask the same question of the OP and anyone else that wants to do it again.

Have you heard of/tried any of these?:

1. Ketchup and/or dill pickle flavoured potato chips
2. Nanaimo bars
3. Maple Syrup (specifically, have you tried it?)
4. Toques
5. Poutine
6. The Sasquatch
7. Gordon Lightfoot