Search:

That's the good one. Took me few hours to solve :)

This one was a bit more challenging :)
I will be surprised if any non-native speaker would solve second one.

We can't, because there's "Activity stream" where posts are shown without formats, so everyone who reads the stream will see the answer.

I've found an answer in less then a minute, but for...

We can write answers this way:

edit: no, we can't. It shows in the stream without styles :(