Keep scrolling down for answers and more stats ...
A little background information on the Basque language, the answer to this quiz. Type in Basque.
Basque
The language isolate is Basque, where its language "relatives" are extinct. Thus, it is no longer part of a language family. Though you could say it's part of the Basque monolingual family. Yeah, that language. So much so that they want to be independent from Spain. Poor guys.