Mostly kids are interested in asking lot of questions, it is really hard to answer each and every questions of them. In my childhood days, i too ask a lot of questions to my parents and get answers for few of them. Now i have 2 sons and they are asking a lot of questions every day and we are answering to them.
There is nothing wrong in asking questions, it is the best way to increase our knowledge, but it is really hard to get answers for all of our questions, since some questions don't have any proper answers. Most of the times we are irritated with some unwanted questions from our kids and avoid answering to them.
As a parent we must reply to all the good questions of our kids, if we don't know the answer we must find it from internet and give the answer to them, this kind of questions will help us to know new information, by this way i learnt a lot from my son's questions. Parents must try their maximum to answer their kids necessary questions, if the question is not important, then we must tell it to them and tell them to avoid asking question in such way.
We must encourage our kids to ask questions and answer to all their good questions to help them to increase their knowledge and share our knowledge with them.