MathWorks Software Engineer Intern interview questions

So MathWorks came to my university to recruit. Somehow I got an interview, the first round was behavioral. The second interview was full of random questions, no coding involved, but a lot of conceptual questions were thrown. A few I could think of was regex's and converting dfs and nfs. Most of the questions are already listed in the site, they do recycle those questions. The third interview, was a mix of both, ask you about your background and a few brain teaser questions.