Without looking them up, name the 9 countries with the most English speakers

[ER]

US is technically the only ones that's correct. We'll give you "England," though (actually UK, which is a country according to the UN!).

weird... so I am from the UK - a country comprised of 4 countries, 2 of which I have never been to 

One thing that used to get me a whiplash-fast stare as a kid visiting my mom's people in Ireland was to slip up and say, "The British isles." It would get a patient explanation from my grandfather that people who said that traditionally did not mean the little islands around Britain, but Ireland included, something the Irish always took a grim view on. Oddly Scots also tend dislike being called British. And don't even begin to go there with the Welsh. I think we live in an age of disunity and localized sentiments.

And, oh, yeah, this may be a wild stab in the dark, but I once heard English is mandatory for all students in Jakarta, so, is Indonesia one of the nine countries? Big population, that I much I know.

[Rev. Powell]

The UK is weird, for sure. Usually here in the US, when we say England, Britain, or the UK, we mean the same thing. (Yes, I know they're all technically different.)

[Jim H]

Philippines?  Former protectorate and high population made me guess that one. 

Also I'm a little curious the standard for "english speaker".  A B1 by the CEFR ratings, B2?  I assume they mean spoken ability too, not reading/writing.  Japan for example has a very low percentage of speakers of English, but a notably higher ability to read/write (though they still won't make the list, I'm quite confident).

[Rev. Powell]

Indonesia is one. (A big surprise to me. I think a large part of it is the tourism industry; lots of Australians go there.)

Philippines is one.

I don't know the exact standard used by the list I saw.

So the correct ones so far are

US
UK
Nigeria
India
Germany
Indonesia
Philippines

Two left. I never would have guessed either, although after I heard one of them, I figured out why they had a large number of English speakers, and also immediately realized why I'd overlooked them. A hint might give it away, though.