In Area 51, proposals in the Commitment phase show a box listing 5 examples for on-topic and 5 examples for off-topic questions near the top of a proposal (sorted by votes), which allows one at a glance to get a feel for what kinds of questions are acceptable there. The FAQs for SE sites start with the heading "What kind of questions can I ask here?" and generally contain written explanations with bullet points but few or no examples, from what I've seen. While I have nothing against the written explanations, I believe providing examples could help reinforce and clarify the range of acceptable questions for new members.
As such, it might be useful to include examples in the FAQ using a similar format to proposals in Area 51.
I don't know how easy or hard this would be to implement but thought it was worth throwing it out there.
EDIT: @Popular Demand brought up a good point regarding the quality of example questions found on A51. I think the quality varies. So here is a screen shot of some example questions that I consider more or less worthy of showing up on a FAQ: