A. That's Tony Cornero, one of the pioneers of Las Vegas!

Q. Which Chicago gangster nearly roasted himself when the torch he was using to cut-up a car ignited a reserve fuel tank? The car in question was allegedly used in the St. Valentine's Day massacre.

tony b.

Vincent Moretti.
Q. Why was Tony Accardo called "Big Tuna?"

A: The press gave him that name because of the 400lb tuna fish he caught at Wedgeport in Nova Scotia.

Q: This gangster was alleged to have whacked over 200 people in his mob career.

More than one gangster fits that description, but I'll say Albert Anastasia.
Q. What did The Chin say to Frank Costello just before shooting him in the head?

Hey Frank, this is for you....or something to that effect.
How did Ray Patriarca die?

ill accept that but I was going for Roy Demeo

Turnbull, the guy you named was on the wrong end of a torch in a similar massacre beginning in February of 1978...but it wasn't the correct answer.

The answer I was looking for was "Tough Tony" Capezio. Many historical accounts have him on the blow torch after the the St. Valentine's Day Massacre cutting up the car.

tony b.

Raymond Patriarca died of cardiac failure at the home of a much-younger woman who refused to identify herself, leading one to suspect, ahem, that the real cause of death was "overactivity" for a man of 76.
Q. What did Al Capone die of?

A: Syphilis

Q: who was the first mob boss ever to survive a failed assasination attempt?

Antonio Matranga in New Orleans.
Q. Which gangster is reputed to have said, "We only kill each other"?

Bugsy Siegel
Q. he is the "Lord High Executioner"

GoodFella

A: Albert Anastasia

Q: Prime minister of the underworld

Frank Costello
Q. he is Big Paulie. . .

GoodFella

A: Paul Castellano

Q: Considered the most powerful Don

If you mean the most powerful Don ever, I'd say Vito Cascio Ferro. If you mean most powerful in America after Prohibition, I'd say either Charlie Luciano (created and ran the Commission) or Carlo Gambino (had biggest family and most wealth, stayed out of prison).
Q. Which gangster ran the Mayfield Road Gang in Cleveland during Prohibition, and later went on to build several hotels in Vegas and was named "Man of the Year" in Vegas?

A. Was that Moe Dalitz? If correct...

Q. The powerful entertainment attorney in Hollywood was one of Chicago's contacts on the West Coast.

tony b.

Sid Korshak.
Q. Which high-powered NY lawyer was hired by Carlo Gambino to defend Gotti in the McBratney murder case?

I'm guessng it was Slotnick, he of the famous "ham sandwich" quote.

No, it wasn't Barry Slotnick. Repeat:
Which high-powered NY lawyer did Carlo Gambino hire to defend Gotti in the McBratney murder?

I think it was Roy Cohn. He was his lawyer before Bruce Cutler took over later on.

Right, Don Marco! Your turn to post a question:

What family sammy the bull was frist in?

Columbo.
Q. What family was Henry Hill with?

The lucchese. who host the frist crime meeting?[forgot what they call it]

If you mean the first US "convention" of Mob bosses from all over the US, it'd be the 1929 Atlantic City meeting. The nominal host was Enoch (Nucky) Johnson, the political boss of Atlantic City. The Mob host is a bit murky--either Johnny Torrio of Chicago or Abner (Longy) Zwillman of New Jersey, depending on the source you read.
Don Vito Cascio Ferro hosted an important meeting of New York City Mafiosi around 1908, but it wasn't a nationwide "convention."
Q. Who ordered Dutch Schultz's murder?

Lucky(?) because Dutch was going after Dewey.
I'm not sure if I'm right,so I wont post a question

You're right. Ask a question.

What was Dasher Abbandando convicted of that sent him to the electric chair?

Frank (the Dasher) Abbandando was executed for the murder of George Rudnick.
Q. Who led the hit squad that whacked Dutch Schultz?

Since no one has responded:
Charlie (The Bug) Workman led the squad that whacked Dutch Schultz.
Q. Who was Albert Anastasia's predecessor as Don of what is now the Gambino family?