In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Article: When 18th-century scientists first came across Australia's platypus , they thought it was a trick. It is not surprising that the platypus made people confused. This funny-looking animal has feet and is a kind of warm-blooded mammal. While other mammals usually keep their blood at around 37 degrees, the platypus has a lower body temperature of 32 degrees. As to its appearance, the platypus'mouth is not really like ducks'at all; its mouth actually looks a bit soft. The platypus closes its eyes when swimming. It uses its mouth to pick up outside information made by the creatures underwater. Strangest of all, the platypus is a mammal that can lay eggs. And there is only one other kind of mammal that can lay eggs, the echidna of Australia. Both the platy-pus and the echidna lay soft-shelled eggs, and both feed their young with their own milk that comes out of their skin. These animals also walk in a way that is similar to crocodiles , with legs on the sides of their bodies rather than under them. Though pretty, in a special way, the platypus is actually one of the few mammals that are poisonous. A male platypus has knife-like bones on its back legs which have enough poison to kill a dog. The platypus has the honor of being one of the oldest mammals in the world. Until the early 20th century, it was hunted for its fur, but the situation has changed. Although the platypus is easily affected by pollution, it is not under any immediate threat.
Answer: It has a lower body temperature than other mammals.
What can we learn about the platypus according to the text?

Article: Taxpayers in America pay less in income tax than many Europeans, according to a Pew Research Center report. Belgium has the highest income tax rate, at nearly 56 percent of income, according to the Organization for Economic Cooperation and Development, or OECD. Taxpayers in the U.S. pay less than 36 percent of their incomes into the national treasury. Taxes pay for services provided by the government. The U.S. ranks 25 of the 34 developed countries polled in the report. An unmarried person with no children was used as an example in the report. In America, an unmarried person, with no children, making the average wage of $50,000 in 2014 paid 24.8 percent of their income in federal income tax and payroll taxes . A similar person living in Belgium would pay 42.3 percent of their income. The average among the 39 countries in the poll was 27.3 percent income tax. The deadline to pay taxes in America is usually April 15. This year, the deadline is April 18. American taxpayers complain that wealthy people and large companies pay too little tax, according to a Pew Research Center poll from 2015. Americans pay tax to fund programs like Social Security and Medicaid, according to the Pew Research Center. Last year, American taxes paid for $888 billion in Social Security benefits. Social Security pays the elderly an income after they stop working. The government also paid more than $546 billion in Medicaid and Medicare benefits. Those programs pay for health and medical care to people who cannot afford it, according to the Center on Budget and Policy Priorities.
Answer: No countries in the world have a higher income tax than that in Belgium.
According to the article, which of the following statements is TRUE?

Article: When it comes to President Obama, most of his personal business is already known by the public. Personal information about his children, Malia and Sasha, however, has been kept a little more _ . The New York Timesrecently released a list of rules that Michelle Obama has mentioned over the years that Malia and Sasha must follow during their time in the White House, as well as in general. See how the first family educates their children: The girls must write reports about what they've seen on their trips, even if it's not required by their school. Malia may use her cell phone only on the weekends, and she and her sister cannot watch television or use a computer for anything but homework during the week. Malia and Sasha have to play two sports: one they choose and one selected by their mother. Malia must learn todo laundry before she leaves for college. The girls have to eat their vegetables, and if they say they are not hungry, they cannot ask for cookies or chips later. While these might be shocking to some, Michelle said, "They're not little princess. It's just basic rules, boundaries, and expectations that we would have normally." Michelle also mentions another set of rules: The girls must do their chores , though the White House has a large staff. Malia and Sasha have chores of their own. They must play a team sport, because it's about learning how to play on a team, how to lose and how to win gracefully. ... It sounds like Michelle and Barack want the best for their kids and to make them as well-rounded as possible. What are your thoughts on the Obama family rules?
Answer: The first family rules.
What's the passage mainly about?