Benny Binion held the first World Series of Poker in 1970 at which Las Vegas casino?

Lawyer and civil rights leader Benjamin L. Hooks became executive director of which organization in 1977? Physician Benjamin Rush was a signer of which 1776 document? Benjamin Sisko commanded which TV space station? Benjamin Wright was chief engineer for the construction of which waterway, built from 1817 to 1825? Which vibraphone player joined Benny Goodman's racially integrated quartet in the 1930s? Bent-nose, duckbill and needle-nose are types of which tool? Beppe, Silvio and the head clown Canio are characters in which opera? Bergamot and Seville are types of which fruit?