Ask him to have : 1. Good communication skills 2. Good test automation skills(any tool) 3. Atleast 1 programming language knowledge like C/Java 4. Atleast 1 database knowledge like Oracle DB. 5. Good overall testing concepts 6. Good problem/puzzles solving logic.
Needless to say these skills cannot be developed overnight,either he has them or he doesn'nt.....Of course, I will never tell you the exact questions I was asked,since I wouldnt want someone less deserving to have an undue advantage.
You may have just won ten million dollars! Or, maybe a tiny ad.