TASK DEFINITION: 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.
PROBLEM: Article: Check out our tsunami facts and learn some interesting information related to these great walls of water that can cause so much destruction. Find out what causes tsunamis and read about some recent examples of tsunamis that have occurred around the globe. The Japanese word for tsunami means harbor wave. Tsunamis are sometimes called tidal waves but this term has fallen out of favour because tsunamis are not related to tides. Tsunamis are huge waves of water that are usually caused by earthquakes or volcanic eruptions. As a tsunami approaches the shore, water may move back from the coast. If it is shallow enough the water may be pulled back hundreds of metres. If you are in the area, you can know that a tsunami is on the way when you see this phenomenon. Regions in tsunami danger zones often have warning systems in place to give people as much time as possible to move to a safe place. When tsunamis hit shallow water (often near the coast) they slow down but increase in height. An earthquake in the Indian Ocean off Indonesia in December 2004 caused a tsunami that killed over 200,000 people in 14 countries. In March 2011, the Tohoku earthquake off the eastern coast of Japan caused a tsunami that was a major factor in the death of over 15,000 people. The tsunami waves created by the Tohoku earthquake reached a height of over 40 metres in some areas, wiping out coastal towns and causing a number of nuclear accidents.
Answer: Four.

SOLUTION: How many causes of tsunamis are mentioned in the text?

PROBLEM: Article: The audience starts to scream and young people all over Britain turn on their TVs. Yes, it's Top of the pops! Top of the pops is an amazing 45-year-old programme. Pop stars from all over the world appear on this successful TV prograrmme. After about 2340 shows, it's still the most popular pop music show in Britain.So what's the secret? "We get lots of bands to perform live in the studio," says producer Chris Cowey. "That just doesn't happen on other shows" Chris starts the preparations for the programme over a week before it goes out.His first job is to decide which bands to have on the show. When the chart of the top twenty songs is produced on Sunday, Chris can start to book the bands Monday starts with Chris meeting his sound, lighting and camera workers. They listen to each song and plan the show. Tuesday is paperwork day. There are bookings to make sure of, letters to answer and lots of phone calls to make. The show is on Thursday. Bands arrive at the studio from 10 o'clock in the morning and start practicing. Tonight's presenter, Jo Whiley, practises too First the bands go to make up. Judy and Issy are the make-up artists. "We see the stars with no make-up on, looking terrible," says Issy. Then the bands go to the costume department where Marianne dresses the stars. Back in the studio things are happening. The audience is practising their dance moves! It takes over two hours to record the whole programme, then Chris edits it all night long. The final version is exactly 29 minutes long
Answer: The live performances in the studio.

SOLUTION: What make (s) Top of the Pops the most popular in Britain?

PROBLEM: Article: Once the 2008 Olympic Games finishes, the drums and trumpets of the competitions would also stop. But would the city remain as lively as it would be after this world event? Investment sustainability and high demand are two highly invaluable economic concepts that can be looked at in order to ensure post-Olympics flourish, or perhaps, an even better future for Beijingers. Naturally, an economic downturn occurs in an Olympic host city once the major event finishes. Renmin University Professor Jin Yuanpu noted that a global event like this would put Beijing into a position of large importance in the international stage. But after this event, who would use the heavily-funded equipment and public and private investments left in the city? Various economists argued that a meltdown is highly unlikely. Jonathan Anderson, UBS Asia economist, suggested that the negative effects of the end of Beijing Olympics 2008 on the entire country aren't important compared to previous host cities. China is such a huge economy that the conclusion of the Olympics games is the same as an ant-bite on a dragon. But what about post-Olympics Beijing? Retired Headmaster of Peking University, Li Yining, noted that a long-term civil demand growth and a popular desire by companies to adopt careful financial management decisions can lead to continued investment growth. Even though demand in some departments of the economy would drop in the short-run, creativity, practicality and innovation would be the key factors that would continually enhance the city's image and flourish long after the Olympics in the city has ended. So what's next for Beijing after the Olympics? Well, it's business as usual...
Answer: Beijing's economy will go worse after the 2008 Olympic Games.

SOLUTION:
Which one of the followings is the author's idea?