Problem: Hume divided all of human knowledge into two categories: relations of ideas and matters of fact (see also Kant's analytic-synthetic distinction). Mathematical and logical propositions (e.g. "that the square of the hypotenuse is equal to the sum of the squares of the two sides") are examples of the first, while propositions involving some contingent observation of the world (e.g. "the sun rises in the East") are examples of the second. All of people's "ideas", in turn, are derived from their "impressions". For Hume, an "impression" corresponds roughly with what we call a sensation. To remember or to imagine such impressions is to have an "idea". Ideas are therefore the faint copies of sensations.
Where did Hume say people's ideas come from?
The answer is the following: their "impressions"

Problem: There were 72.1 million visitors to the city's museums and monuments in 2013. The city's top tourist attraction was the Notre Dame Cathedral, which welcomed 14 million visitors in 2013. The Louvre museum had more than 9.2 million visitors in 2013, making it the most visited museum in the world. The other top cultural attractions in Paris in 2013 were the Basilique du Sacre-Cur (10.5 million visitors); the Eiffel Tower (6,740,000 visitors); the Centre Pompidou (3,745,000 visitors) and Musee d'Orsay (3,467,000 visitors). In the Paris region, Disneyland Paris, in Marne-la-Vallee, 32 km (20 miles) east of the centre of Paris, was the most visited tourist attraction in France, with 14.9 million visitors in 2013.
How many people visited Paris' museums and monuments in 2013?
The answer is the following: 72.1 million

Problem: Israel is widely believed to possess nuclear weapons as well as chemical and biological weapons of mass destruction. Israel has not signed the Treaty on the Non-Proliferation of Nuclear Weapons and maintains a policy of deliberate ambiguity toward its nuclear capabilities. The Israeli Navy's Dolphin submarines are believed to be armed with nuclear Popeye Turbo missiles, offering nuclear second strike capability. Since the Gulf War in 1991, when Israel was attacked by Iraqi Scud missiles, all homes in Israel are required to have a reinforced security room, Merkhav Mugan, impermeable to chemical and biological substances.
Israel is widely believed to possess what?
The answer is the following: nuclear weapons

Problem: There has been a trend in writing the history of this period to depict Hellenistic art as a decadent style, following of the Golden Age of Classical Athens. Pliny the Elder, after having described the sculpture of the classical period says: Cessavit deinde ars ("then art disappeared"). The 18th century terms Baroque and Rococo have sometimes been applied, to the art of this complex and individual period. The renewal of the historiographical approach as well as some recent discoveries, such as the tombs of Vergina, allow a better appreciation of this period's artistic richness.
Who said "then art dissapeared"?
The answer is the following:
Pliny the Elder