Domande di colloquio presso RealBox

Simple puzzles questions , c and C++ basic questions.

The lady who took the first round (not completely sure whether she was HR head or not) asked general questions about schooling/college and skills etc and then told me that the Internship would be unpaid and asked me to give a technical interview for the same. I rejected simply because there was no point in further wasting my time as I was not willing to work for free.