What comes once in a Minuts, twice in a moment, but never in a thousand years?

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This quizzes 5 questions below-
1: what comes once in a minuts, twich in a moment, but never in a thousand years?
Answer:The letterm

2: Some months have 31 days, How many of them have 28 days?
Answer: 12

3: I have cities, but no housess. I have mountains,but not three. I have wafer,but no fish. What am I?
Answer: The map

4: I spoke without a month and hear without ears. I have no body, but I come alive with wind.What am I?
Answer: An Echo

5: You measure my life in hours and I serve you by expiring. I die quick when I'm thin and slow when I'm fat. The wind is my enemy. Who am I?
Answer: A Candle