Judges 19-21

Because they would not turn over the men of the city who raped a Levite's wife all night, who later died

Because they were homosexuals

Because they wanted to have sex with the Levites passing through town

1

2

3

They were trained to fight with their left hand

They could use slings with great skill

They could use a sling to throw a stone at a hair and not miss

All of the above

Because no one from Jabesh Gilead came to meet with the other Israelites at Mizpah

Because they felt sorry for the men of Benjamin whom they had promised to never let any of their own daughters marry, and so they took the women from Jabesh Gilead, who had not made the same promise that they had made, and gave those women to be wives of the men of the tribe of Benjamin

Because all of the women from the tribe of Benjamin had been killed by the other tribes of Israel in the war

All of the above

It was a plan concocted by the other Israelite tribes so that the rest of the men of Benjamin could each get a wife of the Israelite family without the Israelite fathers having to willingly give them to them, so that the Israelites didn't break their promise by "giving" the Benjamites one of their daughters.

Because they were evil