TellApart interview questions

John, the recruiter, is a very pleasant guy, but the interviewer was not at all. The interview started 15 minutes late. Then he asked me to access any computer (this should have been communicated well in advance). He gave me a question to solve. I definitely struggled to solve the question in the first attempt. The interviewer kept himself silent for more than 5 minutes without a word. After a lot of try and error he then said "I want to be honest. You are not in the level of what we are looking for". Very rude and unprofessional. Well this behaviour is very normal from many start-ups, no surprise here. Then he continued and asked me if I want another chance and I said yes. Instead of testing me about specific thing that you know, test me about "how I think", he gave me a text searching problem, I solved it and then he abruptly said "I am almost done here, any questions?".