Question is far too broad for a meaningful answer. Please rephrase. ALL guns are "in the world".
how many types of guns are there in the world?
No there is not golden guns in World at war.
the machine guns
Only two; hand guns and long guns.
Guns are for protecton and many hunters eat the animals they shoot with guns.
The answer to your question is not published in any one document. Generally, all the firearms in the world are in one of two categories; hand guns and long guns.
The higher level you are the more guns you get
yes, we have had guns since the 12th century
No way to answer- there are no world records.
Yes, they did have machine guns in WW2
there is about 1,000,000 toy guns in the japan whole
yes,all ww1 tanks had guns