How to prevent rice from sticking?

Rice can be sticky because of variety, over-cooking, excessive water. Even regular long grain rice can be sticky at times

For normal long grain rice, add following ingredients to water before boiling it to cook rice

1. Add two teaspoons of vegetable oil to 2 cups of water

2. Add ¼ teaspoon of fresh lemon or lime juice to 2 cups of water

3. Add ¼ teaspoon of sugar to 2 cups of water