Given a travel related situation, and given a specific question about the situation, summarize the question into a title

[Q]: I am a European citizen with Spanish passport and therefore I needed no visa for tourism in Japan. I was given a 90 day period (Sep 16 to max. Dec 15) and within that period I must go to the US for an interview (Nov 30 to Dec 5) 

My flight back home to Spain is on Dec 14 so it is not an extension of my original period what I am after. 
I just need to interrupt my holiday for this specific thing and I am afraid of not being able to re-enter, join my (also Spanish) wife again and finish our vacation normally.

Is there any objective information about the regulations regarding re-entry for this type of permit?

[A]: Re-entry to Japan within 90 days period as a tourist?


[Q]: Here's my situation. I am currently in France on an internship visa (different than a business and tourist visa) which ends next month. I'm interested in doing some traveling afterwards, ideally on a 90-day Schengen tourist visa. I'm willing to hop over to a non-Schengen country (like the UK) for a couple days and then come back to get the tourist visa if necessary. 

This post seems similar to my question, except the OP is trying to get the tourist visa without leaving the Schengen area.

Is this allowed? Will the border patrol still give me the tourist visa after my internship visa expires? Will it work through the UK or should I go through another non-Schengen country? I have a USA passport.

[A]: Can I start a tourist Schengen visit after my long-term Schengen visa is over?


[Q]: Context: I am looking into settling down in Berlin and I would like to know what to expect from summer time in term of public activity/cultural events.

What I've observed: I've noticed each city has its own pace during summer time, some cities becoming more active (more people in the city, more cultural/social/outdoor activities), some others becoming more quiet (less people in the city, businesses opened limited hours) or not being impacted at all.

Question: Is Berlin experiencing a decrease in public activity during summer time (July and August)?

I am especially interested by the following aspects:

Are the streets noticeably less crowded during summer time?
Is the city known to experience an increase in social/cultural activity during July and August? (example: outdoor cinemas, streets/parks festivals, music festivals, fireworks, ...)
Is there times during summer when public places (especially coffee places, libraries and co-working spaces) are expected to be open only during limited hours (or to be closed)?


[A]:
Is Berlin experiencing a decrease in public activity during summer time (July and August)?


