Whenever a candidate comes for an interview, surely he would have prepared a lot on his subject and he would have brushed through the latest happenings. This will give him lot of confidence, indeed he will be more confident. But when the interviewer asks any simple out of box question they will fall flat. Take it from me interviewers always try to make candidates comfortable, they always put simple and straight questions.
Some of them will be very silly. But for candidates they seem out of box questions. Watchout for some questions like:
-> Which version of the tools that you are working on?
(Good Practice: Know more about your tools that you are daily working with)
-> Which version of the software that you are working on?
(Good Practice: Know more about your software that you are daily working with)
-> Some details about the company.
(Good Practice: Go through the company's site before attending the interview)