Don’t be afaid to admit that you will ask for assistance if you are feeling overwhelmed.
If it’s true, say you actually work better under pressure.
“What is the toughest problem you’ve had face, and how did you overcome it?”
Try to make this about a problem that faced your company and not just you or your particular work group.
The bigger the problem, the better.
Give specific examples of the skills and techniques you used to resolve this problem.
Emphasize the successful results.
Be generous in sharing credit if it was a team effort, but sure to highlight your specific role.