Very Small.
No, that is perfectly normal.
Not if it is flaccid.
yeas
A 7 inch penis, if measured from the top of the penis, is actually larger than average for an adult male.
yes very small
yes it is average.
below average
No its actually big
A 5" penis is perfectly normal.
No, the average size of a penis is 6 inch when erected for an adult. You will be growing for several years more.
It's perfectly fine.