Muslims all around the world will soon start observing Ramadan, and it's likely you'll know or come across someone who is fasting. But if you're not Muslim yourself, or don't know much about Islam, you might only have a vague understanding of the religious practice.
You might be wondering what exactly Ramadan is, and why Muslims observe it in the first place. How long does it last for? Do all Muslims fast? Are they allowed to have a sip of water?
To fill you in on the basics, we've answered some common questions about Ramadan. You can read what it feels like to go without food and water for 18 hours a day during a month in Ramadan here.