Title: Annelid.
Question: What percent of polychaetes produce yolk-rich eggs?

Title: Separation of powers under the United States Constitution.
Question: In what year was Wayman v. Southard tried by the U.S. Supreme Court?

Title: Ottoman Empire.
Question: Which individual estimated millions of Muslim deaths in the Balkans in the late 19th and early 20th century?

Title: Cyprus.
Question:
In what years was Cyprus divided?