The gods of Sepharvaim are not mentioned in Judges. The idolaters of Sepharvaim called their gods adramelech and anamelech. These are named in 2 Kings (17:31).
The book of Ruth follows the book of Judges in the old testament.
Samson is in the Bible book of Judges, chapters 13 through 16.
The seventh book of the Old Testament (and Hebrew Scriptures) is the book of Judges. Genesis, Exodus, Leviticus, Numbers, Deuteronomy and Joshua all proceed Judges. In the categorizing of the Hebrew Scriptures in Judaism, the book of Judges is part of the Nevi'im, "The Prophets". Christian categorizing of the Old Testament has no such official categorizing.
The story of Samson and Delilah can be found in the book called Judges.
Ruth
Judges
The book of Joshua is in the Old Testament between the books of Deuteronomy and the book of Judges.
Yes; the story of Sampson's life can be found in the Old Testament book of Judges 13th-16th chapters
The Book of Ruth comes after the Book of Judges
Jericho
You can read about Gideon in the book of Judges, in the Old Testament.
The judges mentioned in the Bible are from the Old Testament.