human
What are the most common types of questions that are asked on a question and answer site?
assistant
The most common types of questions asked on a question and answer site include: 
1. How to do something
2. Where can I find information about something
3. Who is the best person to contact for more information
4. What is the meaning of a particular word or phrase
5. Why did something happen
6. What was the outcome of a specific event