STMicroelectronics interview questions

The ST building is beautiful and makes a lasting impression. I was asked to wait in the lounge and was interviewed by two people. Both of them asked technical questions/puzzles. Most of the technical questions were of DS. Then I had one HR interview followed by an interview with the group head.

I was first interviewed by the HR recruitment officer, for an informal talk, what was I expecting from me entering the job, why was I applying for a job in Italy after a 2 years working abroad. Then I met with the team leader and the group manager, I explained briefly what I reported on the CV, I had a tour in the labs with them, presumably testing my questions on the field.