AMD interview questions

1 round aptitude and coding and then one round face to face interview. the interviewer first asked about me. to which i told about my background and projects. then he started asking technical questions the first technical question was to delete an entire linked list and the second question was to reverse a linked list and another question was about finding a duplicate element in an array and at the end he asked me about a puzzle where was supposed to find out the top three fastest horses winner is