Yes you can
No
You can't 'split' kings in checkers.
yes its called a german split then when those pieces re king they can only be jumped by a re king.
King's corners, Checkers, King of the hill, and King Kong
In checkers, yes
yes
No
You can
Either a king or an ordinary playing piece may jump a king in a game of checkers in the United States of America. But the rules are different in Italy. Specifically, in an Italian game of checkers, only a king is allowed to jump a king.
no you can't
Yes
yes
You'll just have to use some other kind of marker.