Q:

How can I generate $250/month every month from $4000 that I have?

I live in Pakistan where cost of living is very low. My expense is $250 per month and I have $4000 saved with me. How can I use $4000 to make $250 per month for the rest of my life?

A:

If you are looking to begin living off the money now, then Dheer's answer is correct - it is not possible.
However, if you are looking to grow that money (and potentially additional money added at later dates), then you could make this work.
250 a month corresponds to 3000 per year. A first approximation is that you will need a diversified portfolio of 20-25x that amount (60k-75k) to get the required return. This approximation is based on the rule of thumb for how much life insurance to buy.
Therefore you need to determine how to grow the 4k you currently have into 60-75k. These numbers, however, are not adjusted for inflation. In the US I would like put the long term inflation adjust diversified market return at 4% per year (your money doubles about every 18 years).
So your best approach if you have time is a diversified portfolio with rebalancing and adding additional money each year.

A:

How can I use $4000 to make $250 per month for the rest of my life?

This means the investment should generate close to 6.25% return per month or around 75% per year. There is no investment that gives this kind of return. The long term return of stock market is around 15-22% depending on the year range and country.

