What were the five most significant accomplishments in your last assignment?

if you want to show that you were responsible for more than five achievements, you can say, " I've given you five that seem the most important to me. There are others, if you'd like to hear about some other area of my work" Then if the interviewer asks for additional accomplishments, you can give them without appearing to boast.

if you are asked for 5 examples, don't cite ten.

hope this helps:)