It's human nature to question. After all, if we never wondered about the world around us, how would we ever be inspired to create?
Fortunately, if you have questions, the Internet has answers. The Web is filled with sites dedicated to answering any question that might pop into your head.
Here, though, is a look at three of the sites that can best answer your most pressing questions.
Quora: The designers behind Quora boast that the site connects you to everything you want to know about. And that's not an empty boast.
If you have a question, you can log onto Quora to get answers from people who share your interests. This often means that doctors, lawyers, economists, screenwriters, and police officers are providing your answers.
As an example, a dietitian might answer your question about how to eat healthy without grains. A long-distance runner might answer your query about how to best prepare for a marathon in chilly temperatures.
Ask MetaFilter: Ask MetaFilter operates under the concept that there are plenty of experts out there with the answers to just about any question you might have. It's an intriguing concept and, surprisingly, Ask MetaFilter usually does provide reliable answers to questions.
The questions on this site are broken into various categories, everything from human relations to technology to health to law and government.
On a recent visit to the site, for instance, people were asking when the fifth season of Mad Men will become available on iTunes Canada. Others asked more philosophical questions. One user, for instance, asked how mature she could possibly be when she considers the best way to make friends is to have the same enemies.
StackExchange: StackExchange is a relative newcomer to the online question-and-answer game. It is made up of a network of 85 question-and-answer sites, though, so it certainly boasts the breadth and depth that you'd want whether you have a question about your dog's incessant barking or the meaning behind that Nietzsche quote.
The site has certainly become popular. It already has 1.7 million users and has provided 7.1 million answers to 3.4 million questions.
Best of all? StackExchange's question-and-answer sites, broken into those serving fans of science fiction and fantasy, database users, cartographers, Web designers, chefs, gaming junkies, and everyone else, are free and open to all users.