31. The tiny mouse has a large head, heavily muscled jaws and powerful teeth that can open hard nuts . 32. Shah called Saeed a " hard nut to crack " and described him as " cool, but intelligent ." 33. In spite of this, the fort would be a hard nut to crack by any rebel force without artillery. 34. He is one who is highly educated and one who I would feel is a hard nut to crack, 35. A species of hard nut is gaining popularity as a replacement for ivory, although its size limits its usability. 36. The other one was Mark Morris'" The Hard Nut ", Morris's intentionally exaggerated and satirical version of the ballet. 37. It's a hard nut to crack for us, but only strong teams make it to the semifinals, " he said. 38. Saeed " is one who is highly educated and one who I would feel is a hard nut to crack," 39. While Frazier was proving himself a hard nut of an honest workman, a traditional American role-model athlete, Ali gave campus speeches. 40. Trying to open the hard nut in the middle of the fruit, or hitting the capsule with a hammer has proven useless.