In MOST of the US, there is no requirement to license or register guns. If they are not registered, there is no way to know how many there are. in 2004, it was estimated that private citizens in the US owned 192 million firearms- the number is higher now.
72%
alot
Too many
You need to tell us more about the "gun license" and for what area. There are many different gun licenses.
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More than 60,000.
41 in us alone
Depends on what you mean by "easy".
Impossible to answer. No central data base exists.
No way of knowing- no records of gun ownership.
No way to find out.
3