The FlixBuses to Denmark from Germany do indeed generally* take a ferry from Puttgarden to Rödby.
The ferry departs every 30 minutes and there is a passport control so you have no option sleeping through.
Once on the ferry you are required to leave the bus. You can sleep in various places on the boat but keep in mind that the driver will not wait for you - ...
It may not.
Apparently (at least tonight) the N770 line Paris-Copenhagen in particular does not take the ferry route via Puttgarden-Rødby, but rather crossed the Danish border at Padborg in Jutland. There was indeed a quick passport control there around 5 AM, but there was no need to exit the bus.
Deutsche Bahn confirm here (and in other answers on their community site) that it is permitted:
Man kann die Probebahncard bestellen so oft man möchte. Aber auch eine Probebahncard ist ein Abo und muss spätestens 6 Wochen vor Gültigkeitsende gekündigt werden.
("One can order the Probe Bahncard as often as one likes. But even a Probe Bahncard is a ...
They are allowed. They even sell them in the shop there:
They are! And they sell them in one of their shops if you don’t have your own. They even have a pump in the same shop to blow them up if you want. I’m sure you could use it to blow your own inflatables up too but I don’t know. Prices are very reasonable! I got a giant pineapple (can fit 2 on) for ...
It is possible to cross by ferry as mentioned by this website:
The car ferry Meersburg - Constance that can also be used by pedestrians or cyclists, makes trip planning even more flexible. There is another car ferry shuttle service between Friedrichshafen and Romanshorn.
German courts are overloaded with cases of illegal immigration. All much more serious than this one.
As the odds are, you very unlikely ever go to court about this. Most likely your wife gets a friendly but assertive letter from the prosecutor (his secretary in reality) he will dismiss the matter on the payment of a fine.
You absolutely have to pay this ...
I cannot really answer the points 1 and 2. Concerning 4, the general way German law works is that you are innocent until convicted by a court, that conviction has been delivered to you and you choose not to appeal. Until then, she is legally innocent (but it may be a good idea to mention that a case has not been decided upon).
That said, the answer to point ...
I have gotten one bottle of liquor when flying in to India from Frankfurt in the past, and never had any problems with this.
That was one of the only few items I got, and it was well below the monetary duty limit and the 2 litre alcohol limit:
You can find the limits here.
Based on German Missions in the United States
Airport Transit visa
Nationals of the following countries are required to be in possession of an airport transit visa when passing through the international transit area of airports in Germany:
Afghanistan, Bangladesh, Democratic Republic of the Congo, Eritrea, Ethiopia, Ghana, India, Iran, Iraq , Jordan*2, ...
If you are citizens of India you need visas, even if remaining airside, unless certain exceptions apply. Most Schengen States do not require visas for airside transit for Indian citizens, but Germany does.
Visas can be applied for at a German mission or a visa application centre.