Qualcomm Software Engineer interview questions

For the interview, they asked me basic C questions. A coding question was given to insert a node in the middle of a linked list using C. The platform used was hackerrank. After that I was asked conceptual C questions related to pointers, process, deadlock, dynamic and static binding, threads and had to give output of some questions which was given. Apart from these, a puzzle was given at the end.

Rotate a matrix, a problem with bitshifting, one with arrays, write memcpy in c