Most of King Saul's battles were against the Philistines, and he gained a number of victories. Other victories were earned in battles against the Moabites, Ammonites, Edomites and Amalekites.
Saul became the first Hebrew king.
Samuel killed King Agag of Amalek by impaling him, when Saul failed to do so (1 Samuel ch.15).
As king, he had none. Saul was the first Hebrew king.
No king Saul and king Solomon are not related.
David was Saul's immediate successor.
Yes, King Saul came from the Jewish tribe of Benjamin.
There was no King Paul. But there was Paul the Apostle. His name was also Saul. Now there was a Jewish King named Saul, perhaps that's whom you mean. He was the King that ruled over Israel for 40 years, immediately preceeding the reign of King David. The last years of his life he lost God's blessing on his reign, God then picked David to be the next King. Saul was jealous of how God was with David, and so sought to have him killed on numerous occasions. Saul and his son Jonathan (who was very close friends with David before David was king) were both killed in a battle that saw King Saul's forces defeated by the Phillistines.
Saul, the first Israelite king, was followed by King David. See also:Choosing the first kingMore about King SaulThe transition of the throne from Saul to David
Saul chased David for several years, around 8-10 years. Their conflict began when David defeated Goliath and continued until Saul's death in battle against the Philistines.
Saul (שאול)
It was the sword and the crown of King Saul that Amalekite took to David after King Saul's death.
After king Saul, there were two famous kings, king David and his son king Solomon.