Jawohl
night in Bonn translates as Nacht in Bonn
The City in Germany? You say Bonn, with a long o like in 'only'
Deutsche Bonbons sind die beste!
Yawohl
Cest Bonn Pour vous = it is good for you
Yes, Bonn is a German surname. It is believed to be of toponymic origin, derived from the name of the city of Bonn in Germany.
Yes it is.
If they are indeed scissores, then, yes - you can say these are scissors!
Yes
Bonn a petite is how you say good appetite in french.
At no time in Bonn = Zu keiner Zeit in Bonn or Nie in Bonn.