Yes...
If your penis is five inches long, then you have already started puberty. The normal size of a pre-pubertal penis is around 3cm, which is about 1 inch.
Contrary to what boys think, girls seldom choose partners based on their penis sizes. Penis size can increase during puberty and also many years after puberty. Even a 1 inch penis can have a erect length of more than 4 inches.
Yes, and it will continue to grow. You will have started puberty if you find your penis has grown to that size. Most boys start puberty around 13-years-old but it can start earlier or later.
Yes, if you have started Puberty.
It depends on whether the individual has started puberty yet. If they have, there could be growth of 2 inches or more.
Unless you started puberty at a really early age then at thirteen you won't have finished puberty yet. Therefore your penis is likely to continue growing for some time to come. However the growth rate will probably slow down considerably. The length of the average adult's erect penis is 6 to 7 inches.
I have had these things when i started having puberty.
It depends on how early in your puberty it started growing. Some boys start puberty early and others later. Even then the order in which the changes occur can vary from boy to boy. If your penis started growing early it may have reached its full size by now but I'd guess that at 13 you might find that even at 7 inches long (which is very impressive for a boy of 13) it still has a little growing left to do. The average length for an adult's penis is 6 to 7 inches but penis lengths of 8, 9 and even 10 inches are not uncommon.
My penis was about 3 inches before I reached puberty. I am now 19 and my penis is now 10 inches but dont be disappointed if yours doesn't reach this I consider myself very lucky. However yours may grow bigger.
That depends on whether you are measuring your penis while it is flaccid or erect. A flaccid penis would be about 3 inches normally. An erect penis is usually 4-6 inches.
You've already started Puberty. :/ The second you started being able to sweat/grew pubic hair you started puberty.
The penis continues growing up until the age of around 16 to 17, so give it a while.