ACV can be used in marination and in salad dressing. If you are consuming it by adding in water, you can add little of lime juice, black salt and cinnamon powder and this will help in reducing the acidic taste.
This totally depends on where the person is starting from. The recommended average rate of fat loss is 1lb./week. A more specific guideline would be 1-1.5% of bodyweight per week. So if you are 105 kilos, 1% would be 1.1 kgs per week or 4.5 kgs per month. This is only if you want to lose fat while preserving your lean body mass. If you try to lose any faster, there is a chance you will lose some lean tissue and have some deficiencies in the long run.
Drinking on a diet is not something which is usually recommend. However if you do feel like having a drink or so once in a while then factor it in your macros.
Make sure not more than 15% of your overall calories are coming from alcohol. You can either track it as a Carb/Fat or a combination of both.
After reaching the goal, then what? Will the acheived weight goal, stay? Or does it mean staying on those diets forever