2. How long will it take to reduce such a large amount?

In fact, twenty or thirty pounds is a lot,

Generally, normal weight loss should be 3 months.

Under normal circumstances, one month 10 kg is not too small, which belongs to the normal range.

If you want to cut back in a short time, I can only say that you are too greedy. (unless you have a large base)

I don't want to go on a diet, don't want to exercise, and want to lose twenty or thirty pounds.

Then I can only suggest you take diet pills.