"Why should we hire you" is the other side of "Why am I applying to work here". You must want the job or you would not have applied. Tell them of your ambitions and why their job advert attracted you. Tell them why you and your skills will be of benefit to them. Do not be boastful and if possible back up what you say with evidence.
Remember an interview is not a test, what they are looking for is a pleasant person who is articulate and capable of cogent reasoning there is no "rite" answer.
why we should hire you in this compagnie
why should i hire you as a cashier
You should hire me because of my excellent qualifications.
"If you cannot pay me then you should not hire me"
hire all the people you can!
You should hire airport shuttle transportation because they are reliable and very reliable.
They should hire you because you are a top seller with creative ideas about selling. You are also passionate about your job.
You should hire a taxi in Fayetteville NC, because they are fast and will take you to your door step.
Millionaires should hire the best divorce attorneys for many reasons. Millionaires should hire the best divorce attorneys because of the money related battle that lies ahead of them.
When applying for a job as team leader you might be asked why you think they should hire you. You could talk about your experience.