You will find that if you give people the answer they will always come back to you. Also telling them LMGTFY is insulting even if it is the obvious answer. It straight out says that they are not worth your time. It also undermines your credibility doing this, as they will think you don't know the answer.
The proper way to deal with this is the GROW model. It is used as a coaching method.
The GROW stands for.
- Goal. Establish the goal that they want to achieve.
- Reality. Determine the current reality of the situation.
- Options. What options can they take to achieve their goals?
- Way. What is the way forward from the questions asked?
More details of it here.
http://www.mindtools.com/pages/article/newLDR_89.htm
In short, do not give them the answer, instead ask questions that will lead to the answer they want and help them to direct themselves to that answer.
Examples.
- A1: "What did it say in the W3C specification? If its not in that, what other documentation did you look at?"
- A2: "what style sheets have you examined so far? What pages used those style sheets? Were they overriding the style?"
- A3: "What metric do you want to base it on? Where do you think you could get that metric from?"
You will find that after a while people will only come to you once they have anticipated all your possible questions. Also the GROW model can help find a solution for someone, even if you don't know the answer.