There could be many reasons sweetheart. Here's a couple of them: 1.Sometimes, depending on the time of day, there may not be a lot of people online to answer your question. 2.People don't know the answer to your question.
Questions are answered on the grounds that people know what the answer is. I it is a more difficult question, you may only get only one or two people answering it. Sometimes you may not even have that kind of luck. In any case, the easier questions that are quicker to answer tend to receive more answers because people know how to answer them well. If someone were to ask "What is your favorite color," more people will answer that than "how do you remove a car battery." People could answer with "I don't know," but that wouldn't be very useful.