Interkinesis is
The period between two successive divisions
The period between karyokinesis and cytokinesis
The period between Meiosis I and Meiosis II
The period between first gap stage and second gap stage.
Interkinesis is the period between Meiosis I and Meiosis II or Telophase I and Prophase II (if cytokinesis after Meiosis I is absent).