World War I, part one

The US was outraged over the "Zimmerman Telegram" sent from Germany to:

Which of these WAS NOT one of the Triple Entente, or Allied Powers?

Which of these WAS NOT widely used for the first time in World War I?

The end of the war or "armistice" came on the 11th hour of the 11th day of the 11th month of:

The "Big Three" of the peace talks at Versailles were

When did the United States enter World War I on the side of the Allied Powers?

The Austrian Archduke who was killed in Sarajevo, sparking the war, was named:

How much longer did the war last after the US entry?

Which of these WAS NOT part of the Triple Alliance, or Central Powers?