For tube station, try "St John's Wood".

Agree the Rainforst question is misleading. Seems that most experts agree it is in Borneo, which is not given as an answer.

Also confusing could be the question about the world's longest river. There has been some confusion about where the Amazon actually starts (a new source was located only recenty) and finishes.

Anyway, all 50 questions now answered for me and Mrs NM. Thanks for the link.