Everyone has weaknesses so while answering this question don’t spend so much time on this. This question is generally asked to know how honest you are with yourself. State one or two minor weaknesses and try to relate it works. (avoid saying “I work too hard” it is a very common answer). Don’t pretend you don’t have weaknesses and don’t avoid answering the question.
Possible Answer 1
You can say, “I used to be very disorganized, always forgetting assignments and birthdays. But I managed to work out a computerized system of to-do lists and reminders that keep me on top of everything.”
Possible Answer 2
“I am a straightforward person, and I cannot say no when someone asks me for help.”