Q: (CNN) -- First it was Mario Gotze. Now Robert Lewandowski is leaving Borussia Dortmund for German powerhouse Bayern Munich.

The sought after Polish international signed a five-year contract with Bayern Munich, Bayern said on its website while calling the 25-year-old one of the "world's top strikers." He'll join the Bavarian outfit at the end of the season, when his current deal with Dortmund was due to expire.

"We are very happy that this transfer has gone through," Bayern CEO Karl-Heinz Rummenigge said. "Robert Lewandowski is one of the world's top strikers.

"He will not only strength our squad, but his arrival will also give the entire club a boost."

Some would say Bayern hardly needs it, since it won five trophies in 2013 and is on pace to cruise to yet another Bundesliga crown.

Lewandowski co leads the Bundesliga in scoring this campaign with 11 goals and has netted 91 times in 165 games for Borussia Dortmund since joining from Poland's Lech Poznan for a bargain basement $7 million in 2010.

His goals also helped Borussia Dortmund reach last season's Champions League final, although Bayern Munich came out on top in London.

Gotze's move to Bayern Munich was announced last April while he still played for Borussia Dortmund and the German international became a highly unpopular figure among many Dortmund fans -- so Lewandowski might expect some jeers himself.

Lewandowski's impending departure is a further blow to Dortmund.

The German champion in 2011 and 2012 -- Lewandowski played a key role -- Jurgen Klopp's side has slipped to a distant fourth in the league and narrowly advanced to the second round of this season's Champions League.

1. Robert Lewandowski
2. Bayern Munich
3. Borussia Dortmund
4. no
5. Mario Gotze
6. 25
7. five years
8. at the end of the season
9. striker
10. yes
11. five
12. 91
13. 165
14. Champions League final
15. last season
16. Bayern Munich
17. not good
18. jeers
19. Poland's Lech Poznan
20. $7 million

Numbered questions:
1. Who is switching teams?
2. What team is he joining?
3. What team is he leaving?
4. Is he the first to leave?
5. Who was?
6. How old is Lewandowski?
7. How long is his new agreement?
8. When does he start playing for them?
9. What position does he play?
10. Is he good at it?
11. How many trophies was Bayern awarded in 2013?
12. How many times has he scored for Dortmund?
13. In how many matches?
14. What did he assist Dortmund in getting to?
15. When?
16. Who won that?
17. How do supporters feel about him?
18. What should he anticipate receiving from them?
19. Where did he play before Dortmund?
20. What was the cost of his contract in 2010?

Q: There are 45 students in our class. I have made a survey, 36 students say they like to exercise. Most boys play basketball together twice a week. But girls think basketball is difficult for them, they'd like to play volleyball together twice a week. My friend, Tony, is good at running. He runs fastest in our class. He runs for 30 minutes on the playground every evening before he goes to bed. Is it interesting? Gray is good at swimming. He goes to the swimming club three times a month in winter, and three times a week in summer. So he is pretty healthy. Some of my classmates have good eating habits. They eat both meat and vegetables. 70% of them drink milk every day. 15 students say they drink milk three or four times a week. But some students like to eat junk food, especially Sally. What's worse is that she doesn't like to exercise, so she is very fat. She always says " I'm going to lose weight tomorrow."

1. 30 minutes
2. Yes
3. 45
4. Gray
5. 36
6. three times a month
7. Yes

Numbered questions:
1. how long does Tony run before bed?
2. every evening?
3. how many students are there in the class?
4. who is good at swimming?
5. how many students like to exercise?
6. how many times a month does Gray swim in the winter?
7. is he healthy?

Q: Australia uses three main time zones: Australian Western Standard Time (AWST; ), Australian Central Standard Time (ACST; ), and Australian Eastern Standard Time (AEST; ). Time is regulated by the individual state governments, some of which observe daylight saving time (DST). Australia's external territories observe different time zones.

Standard time was introduced in the 1890s when all of the Australian colonies adopted it. Before the switch to standard time zones, each local city or town was free to determine its local time, called local mean time. Now, Western Australia uses Western Standard Time; South Australia and the Northern Territory use Central Standard Time; while New South Wales, Queensland, Tasmania, Victoria, and the Australian Capital Territory (ACT) use Eastern Standard Time.

Daylight saving time is used in South Australia, New South Wales, Victoria, Tasmania, and the ACT. It is not currently used in Western Australia, Queensland or the Northern Territory.

The standardization of time in Australia began in 1892, when surveyors from the six colonies in Australia met in Melbourne for the Intercolonial Conference of Surveyors. The delegates accepted the recommendation of the 1884 International Meridian Conference to adopt Greenwich Mean Time (GMT) as the basis for standard time.

The colonies enacted time zone legislation, which took effect in February 1895. The clocks were set ahead of GMT by eight hours in Western Australia; by nine hours in South Australia (and the Northern Territory, which it governed); and by 10 hours in Queensland, New South Wales, Victoria, and Tasmania. The three time zones became known as "Eastern Standard Time", "Central Standard Time", and "Western Standard Time". Broken Hill in the far west of New South Wales also adopted Central Standard Time due to it being connected by rail to Adelaide but not Sydney at the time.

1. in the 1890s
2. Australian
3. yes
4. local mean time
5. unknown
6. yes
7. yes
8. Western Australia
9. Queensland
10. 1892
11. six
12. Melbourne
13. the Intercolonial Conference of Surveyors
14. the 1884 International Meridian Conference
15. yes
16. February of 1895
17. eight hours
18. 10 hours
19. yes
20. the west

Numbered questions:
1. When was standard time introduced?
2. What colonies adopted it then?
3. Before the switch, could each city decide what its own time was?
4. What was the name for that time?
5. Will futuristic time travelers visiting Australia still use this time?
6. Is Daylight saving time used in New South Wales?
7. What about Victoria?
8. What's a place it's not currently used in?
9. And another?
10. When did the Aussies start standardizing their time?
11. How many colonies are in Australia?
12. Where'd they all get together?
13. What'd they call their conference?
14. Whose recommendation did they decide to adopt?
15. What was the time the recommendation put forth?
16. When did the legislation the colonies enacted take effect?
17. How many hours did they set their clocks ahead in Western Australia?
18. What about in Tasmania?
19. Is Broken Hill connected to Adelaide by train?
20. Is it further to the west or to the east?