The four parts of a strong interview answer, and what weakens it
A good interview answer is a tiny story in four fixed parts, and most weak answers skip one of them.
When a supplier missed a deadline last March, I rebuilt the delivery schedule in two days and we shipped on time.
A strong answer to a question about your experience is a very small story, and it has four parts in a fixed order: the situation and when it arose, the difficulty inside it, what you personally did about it, and what changed as a result. The model sentence above does all four in one breath. Notice how little of it describes your character: it fixes a moment on the calendar, names one difficulty, gives one action with a first-person subject, and ends on an outcome anyone could check. Interviewers are trained to listen for that last part, and it is the part candidates most often leave out, stopping instead at the point where the effort was made.
The weak version of any of these answers is not wrong English; it is English with the evidence taken out. Look at what each of the three example sentences carries: a pair of figures, a stretch of time, or a horizon you could be held to. Remove those and the same grammar produces sentences anyone could say about any job. Two habits do the removing. The first is reaching for adjectives about your own character instead of one episode, because adjectives are far easier to produce under pressure in a foreign language than a narrative is. The second is the plural subject: in many workplaces claiming personal credit feels impolite, so candidates report what the group achieved and the interviewer never learns what they did themselves.