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.
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Question: Article: NOT all math skills are learned in the classroom. Some of them come naturally. Consider the split-second calculations you make when you estimate the number of empty seats on the school bus or the number of cookies in a cookie jar. These estimates can often be done without counting. That's because humans are born with the ability to closely guess the number of items in a group. Researchers call this ability a person's "number sense". To see how a person's inborn number sense might be linked to mathematical performance in the classroom, psychologist Justin Halberda and his colleagues from Johns Hopkins University in prefix = st1 /Baltimore,USran some tests. The scientists asked 64 14-year-olds to look at images of yellow and blue dots that flashed on a computer screen for a fraction of a second. Each image contained between 10 and 32 dots that varied in size. Some images contained twice as many blue dots as yellow dots. In other images, however, the number of blue and yellow dots was nearly equal. For each image, the students were asked to estimate which color1 had more dots. The scientists found a wide variation in how well students could pick the color1 with the most dots. The scientists then looked at the students' math scores dating back to kindergarten. Children that performed best in the image test also scored the highest in standard math tests. The same finding held true at the other end of the spectrum . Students who didn't score well on the image test received lower math scores. The study was the first to show a link between a person's inborn number sense and his or her achievement in formal math training. Does this connection mean that one cannot be good in math if they have a weak number sense? Or that having a strong number sense is a guarantee for good grades in math? The answers are not clear. While scientists continue looking at the possible links between a person's number sense and math achievement, one thing is certain: Doing lots of math homework will _ your chances of success.
Answer: Those who have a strong number sense are sure to do well in math.

Answer: Which of the following is not true according to the passage?

Question: Article: London Heathrow is the biggest airport in the UK, and it also handles more international passenger traffic than any other airport in the world. For this reason, enlargement was planned and on 27th March a fifth terminal opened to help to deal with the many passengers that pass through the airport. The new terminal has taken a long time to plan and build. The idea was first proposed back in the 1980s. The opening of it has been talked about widely in the media in the UK and expectations were high for the PS4.3 billion project. However, in spite of long preparations at Terminal 5 ahead of the grand opening, things soon went into a mess. There were problems from the very beginning as staff had difficulties finding car parking spaces and getting through security to get into the building. This consequently caused a delay when passengers started to arrive and large numbers of staff were not in place. Long passenger queues formed and the slow start meant that everyone had to play catch-up from the beginning. Staffs were having problems using the new systems and a baggage operator told the BBC, it was all "shambles the moment the doors opened". The terminal has been designed to handle 12,000 bags an hour but due to a reported "lack of training and essential support that was promised", a backlog of luggage soon appeared. By lunchtime on that first day, 20 flights had been cancelled to try to alleviate the problems. Flights continued to be cancelled in the days following the opening and up to 28,000 bags have now had to be placed in temporary storage. The British Airline, the only airline operating at Terminal 5 says it is working to clear the backlog, but the negative publicity caused by the shambles has not helped the airport or the airline's reputation at all.
Answer: They had to wait a long time and play catch-up when checking in.

Answer: What was the difficulty that passengers met with on the very first day of the opening?

Question: Article: It was a painful 100 hours from the moment the earthquake struck until rescuers pulled Liu Deyun from the ruins of a factory yesterday. When he went to work on Monday morning, he had never thought that he would spend the next week in the ruins of his workplace. "It was a miracle , but that happened through our hard work," said Zhao Hongxing, an army doctor who joined in rescue. "His first words were 'The army is great. '" Chinese troops may have been the ones to physically free Mr Liu, 50, but it was his daughter who didn't give up looking for her father that saved his life at last. On Thursday night, running around the fallen factory, the family search party headed by his daughter, heard a low cry. "Father! Father!" Mr Liu answered in a low voice "Yes". Then, after more than three days buried under the fallen building, came two simple words: "I'm thirsty". The reply was probably not what he was wanting: "Father don't talk! You need your air! I will go and find somebody to rescue you!" The entire first floor of the building fell down, with the second floor completely damaged and pushing the building to one side. The 12-hour rescue operation to save Mr Liu was filled with danger. Mr Liu was freed yesterday at 6:28 p. m. His family had agreed to cut off one of his feet so that he could be pulled out. "I just want him to live," his daughter Yuan, 23, said in tears. Mr Liu, wrapped in a blanket, was welcomed by a large number of people who was concerned about him. And with the latest survivor taken to a waiting ambulance , the rescue workers went back to the ruins where two more factory workers were waiting for their turn to be dug out.
Answer: Friday.

Answer:
What day was Mr Liu was saved from the ruins?