Adobe interview question

interview one: interviewer was very friendly simple registration form testing: both UI and backend write code :: given a array arrange the elements in such a way that all odd numbers come first find intersection point of two linked lists count the number of sqaures in a chessboard Some questions on REST web services interview two some online service booking UI. list all test cases Some questions on Junit and REST web services Puzzles 25 horse puzzle, two candle 45 mins puzzle interview three: Guy was very tough to please asked me to explain about my current projects write plan for end to end testing of Gmail write a program to reverse a LinkedList interview four: It was a mere formality as VP had already made up his mind of not offering me the profile. Third round question was repeated this time test plan for twitter/facebook.