Meta Software Developer interview questions

Phone interview. The HR arranged an phone interview after my application was referred by an current employee. The interviewer called on time. He introduced himself very quickly and also talked about what he is doing now for the job. After that he let me to talk about the most challenge project I have ever made. Then the coding question begins: he tried to mislead me by using a very long description about the question. For example, this is about PHP bla bla... But actually the question is about Depth First Search. There was just one question because I was slow. I think I will be rejected.