Jin intends to print some site minicards for promoting Mathematica.SE at the WRI conference.
I suggest posting here the questions we consider appropriate, and voting on those.
Jin's guidelines are:
The idea is that when we pass out these cards to people, the questions are so interesting that they'd be inclined to get on the computer and type in the URL to find out the answer.
I prefer to have the 3 questions to cover different scopes of the site. All should have accepted answers. It'd be great if the question is in the "How to ... ?" or "What ... ?" format.
If you need to tweak a little the question title to meet the requirements, go on as far as the meaning is not distorted. And remember that both "serious and informative" and "flashy" questions are good choices.
I am posting below some questions already mentioned for this purpose in chat