This book is a minimalist study of "wh"-questions in Polish, which aims at providing a homogeneous account for the phenomena under consideration. The discussion is set against the hypothesis that "wh"-fronting in Polish targets Spec, CP]. The analysis relies on the idea that "wh"-movement applies for reasons of feature checking, as assumed by Chomsky (1993, 1995 ch. 3). The book offers an analysis of multiple "wh-"questions, "wh"-scope marking constructions and long-distance "wh"-extraction facts in Polish. The author argues that no overt "wh"-movement in the traditional sense takes place in Polish. "Wh"-fronting is triggered by the need to check a strong ]focus]-feature. It is shown that the analysis in terms of focus movement is well suited to capture the properties of interrogative constructions in Polish.