wissen wollen

listen to the pronunciation of wissen wollen
Немецкий Язык - Английский Язык
demanded
to demand something (of somebody)
Was wollen Sie denn wissen?
So, what do you want to know?
etw. gern wissen wollen
to be curious to know something
gern wissen wollen (ob, wie, wann etc.)
to wonder (if, how, when etc.)