Problem: On the morning of September 11, 2001, nineteen men hijacked four airliners all bound for California. Once the hijackers assumed control of the airliners, they told the passengers that they had a bomb on board and would spare the lives of passengers and crew once their demands were met - no passenger and crew actually suspected that they would use the airliners as suicide weapons since it had never happened before in history, and many previous hijacking attempts had been resolved with the passengers and crew escaping unharmed after obeying the hijackers. The hijackers - members of al-Qaeda's Hamburg cell - intentionally crashed two airliners into the Twin Towers of the World Trade Center in New York City. Both buildings collapsed within two hours from fire damage related to the crashes, destroying nearby buildings and damaging others. The hijackers crashed a third airliner into the Pentagon in Arlington County, Virginia, just outside Washington D.C. The fourth plane crashed into a field near Shanksville, Pennsylvania, after some of its passengers and flight crew attempted to retake control of the plane, which the hijackers had redirected toward Washington D.C., to target the White House or the U.S. Capitol. None of the flights had any survivors. A total of 2,977 victims and the 19 hijackers perished in the attacks. Fifteen of the nineteen were citizens of Saudi Arabia, and the others were from the United Arab Emirates , Egypt, and Lebanon. On 13 September, for the first time ever, NATO invoked Article 5 of the North Atlantic Treaty. On 18 September 2001, President Bush signed the Authorization for Use of Military Force Against Terrorists passed by Congress a few days prior.

How many people perished counting the hijackers?
Answer: 2996

Problem: Of the rebellion's leaders, the Earls of Northumberland and Westmorland had fled into Scotland. Northumberland was captured by James Douglas, 4th Earl of Morton, and turned over to Elizabeth in 1572, who had him beheaded at York. After having been hidden at Ferniehirst Castle, Westmorland escaped to Flanders, where he died impoverished. His family lost their ancestral homes and his wife, Jane Howard, also fled to the Continent. She lived the rest of her life under house arrest. Her brother, the Duke of Norfolk, was first imprisoned, then pardoned. He was imprisoned again following the Ridolfi plot in 1571 and finally executed in 1572. Norfolk's treason charges included "comforting and relieving of the English rebels that stirred the Rebellion in the North since they have fled out of the realm." Altogether, 600 supporters of Mary were executed, while many others fled into exile. Queen Elizabeth declared martial law, exacting terrible retribution on the ordinary folk of the Yorkshire Dales, despite the lack of any popular support for the Earls' Rising, with her demand for at least 700 executions. The victims of this purge were, as a contemporary account said "wholly of the meanest sort of people", so that hardly a village escaped the sight of a public hanging. In 1570, Pope Pius V had tried to aid the rebellion by excommunicating Elizabeth and declaring her deposed in the papal bull Regnans in Excelsis, but the document did not arrive until the rebellion had been suppressed. The bull gave Elizabeth more reason to view Catholics with suspicion. It inspired conspiracies to assassinate her, starting with the Ridolfi plot. In 1587, Elizabeth brought Mary, Queen of Scots, to trial for treason; she was convicted by the court and executed.

How many times was the Duke of Norfolk imprisoned?
Answer: 2

Problem: The Conquest of Melilla occurred in September 1497, when a fleet sent by the Duke of Medina Sidonia seized the north African city of Melilla., as continuation of Reconquest of Mauritania Tingitana During the 15th century the mediterranean cities of the Sultanate of Fez fell in decadence in opposition to cities located in the Atlantic facade, which concentrated most of the economic activity. By the end of the 15th century, the port of Melilla, that had been often disputed between the rulers of Fez and Tlemcen, was nearly abandoned. Plans for the conquest occurred as soon as the Fall of Granada in 1492. Spanish captains Lezcano and Lorenzo Zafra visited the coast of Northern Africa to identify possible locations for the Spanish to overtake, and Melilla was identified as a prime candidate. Melilla was, however, in the Portuguese zone of influence under the terms of the 1479 Treaty of Alcacovaz. At Tordesillas in 1494, King John II of Portugal, the Portuguese ruler agreed to make an exception and permitted the Spanish to attempt the conquest of Melilla. The duke sent Pedro Estopinan who conquered the city virtually without a fight in 1497, as internal conflicts had depleted it of troops, and its defenses were weakened. The Wattasid ruler Muhammad al-Shaykh sent a detachment of cavalrymen to retake control of the city, but they were repulsed by the guns of the Spanish ships.

How many years after the Fall of Granada did the Conquest of Melilla occur?
Answer: 5

Problem: The Azov campaigns of 1695-96 , were two Russian military campaigns during the Russo-Turkish War of 1686-1700, led by Peter the Great and aimed at capturing the Turkish fortress of Azov , which had been blocking Russia's access to the Azov Sea and the Black Sea. Since the Crimean campaigns of 1687 and 1689 had failed because of the difficulty of moving a large army across the steppe, Peter decided to try a river approach.

How many different years did the Azov campaigns take place?
Answer:
2