You didn't mention the destination in Germany. However, it takes about an hour and 15 minutes if you go by plane from Paris to Berlin.
no
it will depend on where you are flying from
by plane
2hr 30mins
i guess 15hrs
about 6 hours maybe...
21 hours and 2minutes
11 hours
About 8 hours 30 minutes.
9-10 Hours
That entirely Depends on where you are coming from and what plane you are flying on.
In estimate, around 2 hours (by plane).