Solution, Answer and Reason

Today something suddenly appear in my mind, I am questioning what is the difference between solution, answer and reason?

Look, when someone asking you why you did this, did that, and when you reply to that question, what is your reply should be? Answer or Reason? When you solving a mathematic problem, e.g. '1+1=?', the '?' should be Solution? Answer? Or when someone ask you how can you did something, then the answer should be Solution? Reason?

My view, lets look at a few cases:

A. When someone ask you why you do this on him/her (usually bad things)...

1. You decide to hide the truth in order not to hurt him/her (hiding Reason)

2. You thinking how to reply him/her (Solution)

3. And finally you came out a reply to him/her (Answer)

B. When you solving equation '1+1=?'

1. '?' is 2 (Answer)

2. Because '1+1' (Reason)~:D

3. Then the solution? The solution is '1+1=2', use brain la...:P (Solution)

C. How you did this?

1. I do it like this, like that...(Solution)

2. Why I do like this like that (Reason)

3. Answer? Give you my solution already what? (Answer)

***The above stuff just for fun, don't take it serious~LOL~