0.Some Java8 related question like Stream Api, filter(), reduce() 1. Find the meddle element from a single LinkedList 2.Find Kth smallest element in a two dimensional matrix. Input: Two dimensional array of integers and integer k Output: kth smallest number (integer) 3.what are methods in object class, beans in spring boot , Api GateWay, Rest Api related questions, Multi Threading like deadlock condition , racerun condition ,how to optimise query, microservices related questions