11. Whoopi Goldberg concedes that she's a hard nut to crack. 12. "The Hard Nut " ), his contract was not renewed. 13. The species also has specialized dental morphology for feeding on hard nuts , seeds, and fruits. 14. Many analysts say the German market is a hard nut for pay TV to crack. 15. Dinner reservations are a very hard nut to crack, 16. MR Chatu Mongol Sonakul has been entrusted to crack many hard nuts within a short period. 17. As'Amr surveyed the military situation, he felt that Alexandria would be a hard nut to crack. 18. There were, for instance, " The Hard Nut ," 19. Gracile capuchins have rounder skulls, whereas robust capuchins have jaws better adapted for opening hard nuts . 20. Traditionally in India, the fruit is dried in the sun and the hard nuts are removed.