Reasonable, loving parents have their good reasons for asking children to do whatever they are asking them to do. You can put the reason right into your request in order to try to ward off some of these "why" questions. For example, tell your child, "please put away your toys now because it's time for supper." If you forgot to give a brief reason, and your child asks you "why", you can, as a courtesy, offer ONE brief explanation. However, if he doesn’t like your answer and challenges it with another “why” as in “but why can’t I just finish my game?” then you can give him the standard SECOND answer which is, “Because Mommy asked you to turn it off now.” This, as you can see, is a variation of, “because I said so” which is the ultimate reason.  The child needs to comply because in a home, the parent is in charge, period. Parents can issue requests to their kids without being subject to an intense inquisition each time. Asserting fair and respectful authority in the context of a loving relationship is actually good for children, helping them to grow up in the most healthy way possible. So you can see that you don't have to give endless explanations to your child. Just keep it simple and firm.  Sarah Chana

I think it is good to tell your child what is going to happen next. Say, for instance, show him the clock and say: Look at the clock. You are having a bath at 6. When the time for the bath comes he won't be asking "why?" Just point at the clock! If you were to give advance warning, then it could solve the problem.Another thing to do would be to "answer" 3 "whys"/day! When he has asked his 3 "whys", then you can say that this was all for today and there would be 3 more tomorrow, or how many more you're prepared to answer. Try!!