Office Girl Question:

This seems like an easy question - you know what you're good at right? But don't take this question strictly at face value. Read the job description carefully, and describe an ability of yours that would lend itself to being particularly successful on the job. Just make sure that they're true strengths. You don't want to claim to be good at something you don't actually know how to do. Think up a relatable anecdote in advance that demonstrates how you have used these strengths on the job.
Don't say: There's too many to count. Really, I'm great at everything.