Amazon Software Development Engineer In Test interview questions

Got an interview call for SDET post. These are the questions asked: 1. Find out that data in a linked list is a palindrome 2. You have an array (size is not known) and whose elements are having the values from 0-> 99. Find out the three largest elements in that array and return those. 3. Write the Test cases for the amazon review page which has these things on that page: stars to rate the product two edit boxes: 1 for title, 2 for review two buttons: ok and cancel.

They conduct 2 rounds of telecon from US and timing of the telecon is on odd hours. I do not know whether it is deliberate so that potential candidate can adjust his/her working hours before joining them.