Questions and answers are a major topic in semantics and pragmatics, and to some extent in logic and philosophy as well. This interest in inquisitiveness goes beyond the interpretation of questions as such. For example, questions are widely assumed to play a structural role in the analysis of discourse. Likewise, most theories on focus and the interpretation of intonation make a link with the question-answerhood relation. More radically it has been argued that a proper understanding of seemingly purely informative constructions, like disjunctions and conditionals, requires a notion of inquisitiveness as a basic ingredient of meaning. The main aim of this workshop is to investigate the significance of inquisitiveness for semantics, pragmatics, and logic.