Christmas quiz

[smouse]

I am totally lost on what this section means - is anyone else doing it and any clearer than me
Explain the difference to the following pairs
1. Portsmouth and Croydon when found in the loft - dont know this one at all
2. Sheffield and Sterling when found in the canteen - I presume this is just sheffield silver plate as opposed to sterling silver
3. Kendal and Chorley in your lunch box - is it just that kendal mint cake isnt a cake
Wont list rest but some help especially with (1) would be welcome

[shaneystar2]

Chorley is a cake ....similar to an Eccles cake .

[smouse]

Thats what I said but its just the title to the section and how much I am supposed to write
and I dont have any idea what to put for the first one though the one about Portsmouth and Croydon