XYZ (Turkey) interview questions

I applied through a recruiter. The interview process took 1 day.Its was average . 3 technical rounds focus on collections, multithreading. Question like how to find two strings are anagrams or not. How to find the 2nd highest salary.Reversing the words in the string array without using build in functions.

It took 3 weeks to get an interview. 1st was a recruiter call and then after 3 weeks client phone interview. I was expecting questions from my resume but nothing was asked about my experience. Looks like it was HR round of interview.