This pair is played out, but it still gets asked on a regular basis. Interviewers know all the cop-out answers (like being "too much of an achiever"), and a lot of managers tune out during these questions anyway. The trick? Answer them honestly, but choose your mildest weakness and a moderate strength. Saying you prefer prioritizing to multitasking is a good "weakness" since recent studies show that nobody excels at multitasking.