International Court of Justice — Advisory jurisdiction — Competence — Review of judgments of the United Nations Administrative Tribunal — Committee on Applications for Review of Administrative Tribunal judgements — Legality of creation of the Committee by the General Assembly — Competence of the Committee to request advisory opinions — Propriety of giving an opinion — Equality of parties before the Court-Oral proceedings — Binding force of Court’s opinion as laid down in the Statute of the Administrative Tribunal — Alleged failure of Tribunal to exercise jurisdiction vested in it — Definition of failure to exercise jurisdiction — Distinction between jurisdiction and merits-Whether paucity of compensation awarded indicates failure to exercise jurisdiction — Claims for injury to professional reputation and career prospects — Claims for costs — Alleged failure to state reasons for rejecting claims.