Greece must reach an outline funding agreement with its lenders at a meeting of euro zone finance ministers on April 24, its finance minister told a Greek newspaper on Monday. "At the Eurogroup (meeting) of April 24 there must be a preliminary conclusion (of the talks), as per the Eurogroup accord on Feb. 20," Yanis Varoufakis told daily Naftemporiki. Gerda Hasselfeldt, a senior member of German ...