Take it down to your local guitar shop.
Not all guitars have frets, however, it is probably best to learn using frets.
Because it is not a guitar
5.
Frets
frets
Yes but metal frets will let the string resonate better
It depends on the scale of the instrument, but the higher the frets are the closer they are together... no two frets are the same!
They are all supposed to have frets. Sometimes they fall out if the guitar is handled rough.
22 frets
yes usually electric guitars go up to 22 frets some metal guitar go to 24 frets.
Yes.
on the neck....they are the raised metal ribs