Questions from a three year old...

This is my first experience with answering a three year old's questions.  But, I have to say that I wish my son would learn the question 'WHY', instead of the question 'HOW'.  At the moment, he asks how when he should be asking why, and as an adult... knowing what he really wants... I find myself often answering why instead.  However, I am a firm believer that if a person is looking for a specific answer, then they should ask the correct question... but trying to explain HOW I'm eating a cookie is so much more difficult than why...