(CNN) -- All big ideas start small, and Calle 13 -- a wildly popular alternative urban band from Puerto Rico -- is no exception. 

Its members, Rene Perez, who goes by "Residente," and Eduardo Cabra, "Visitante," are stepbrothers. When their parents divorced, Cabra would visit Perez at his father's house on 13th Street, or Calle 13. 

He was required to identify himself to enter, as either a resident, "residente" or visitor, "visitante," in Spanish. 

The names stuck. 

"Later, it took on another meaning, with the question of whether immigrants are residents or visitors," said Perez, who along with Cabra, recently sat down to talk with CNN en EspaÃ±ol's Claudia Palacios. "But that was how it started." 

Neither brother could have imagined then what Calle 13 would become -- one of the most highly praised and talked-about groups to come out of Latin America in years. It has won more than 20 Grammys and moved beyond its reggaeton roots to include instruments and sounds from all over the region, winning critical and popular praise in the process. 

Though raunchy, the group's lyrics are often hard-hitting on social issues, and Perez is particularly well-known for being outspoken about poverty, Puerto Rican independence and education. 

Asked how he views his career now, Perez said he's matured and made some adjustments so that people can better hear and understand his message. 

"I liked to use bad words," said Perez, who raps and writes the group's lyrics. "Because it seemed to me it gave a reality that's missing in music."  What are the answers to this following set of questions: 1. Where is Calle 13 from?
2. How do all big ideas start?
3. Are the members cousins?
4. What is their relationship?
5. Who was required to identify himself as a visitor or resident?
6. Who does Claudia Palacios work for?
7. How many grammy's has the group  won?
8. Does the group always have wholesome lyrics?
9. Where was this article published?
10. What type of band is Calle 13?
11. What does Residente mean in English?
12. What does Visitante mean in English?
13. Is the group well known in Latin America?
14. What kind of issues does the band address?
15. How does Perez describe his career now?
16. Why did the band make adjustments?
17. Who writes the groups lyrics?
18. Does he rap also?
Answer: 1. Puerto Rico
2. small
3. no
4. They are stepbrothers
5. Cabra
6. CNN en Espanol
7. More than 20
8. no
9. (CNN)
10. Alternative
11. Resident
12. Visitor
13. yes
14. social issues
15. It has matured
16. so that people can better hear and understand his message.
17. Perez
18. yes

(CNN) -- Three people have been charged in last year's theft of the famous "Arbeit Macht Frei" sign at the Auschwitz concentration camp in Poland, a prosecutor said Friday. 

The prosecutor, Robert Parys, said he could not immediately confirm details about those charged, but Poland's official PAP news agency reported the main suspect is a Swedish man, Anders Hoegstroem. 

Prosecutors say Hoegstroem incited two Poles to steal the sign, which sat atop the entrance to the camp, PAP reported. He pleaded not guilty, and would face a sentence of 10 years in prison if convicted, the news agency reported. 

Hoegstroem was arrested in February in Stockholm, Sweden, and the Swedish court allowed him to be transferred to Poland in April, PAP said. 

The sign reading "Arbeit Macht Frei" -- German for "Work Sets You Free" -- was emblematic of the Nazi camps of World War II. It was stolen in December of last year, prompting outrage around the world. 

The sign was found 70 hours later in a village near Torun, roughly 210 miles (340 kilometers) to the north, and had been chopped into three parts, PAP reported. 

The men managed to remove the heavy iron sign by unscrewing it from one side and pulling off on the other, police spokeswoman Agnieszka Szczygiel said at the time. 

More than 1 million people died in gas chambers or were starved to death in the Auschwitz-Birkenau concentration camp complex; about 90 percent of the victims were Jews. 

 What are the answers to this following set of questions: 1. What was stolen?
2. From where?
3. Who was the main instigator?
4. Where is he from?
5. How many helped him?
6. Where were they from?
7. Where was he located?
8. How long will he spend in jail?
9. where was the it found?
10. when?
11. What had been done to it?
12. What did the sign mean?
13. What is is a relic of?
14. How far away is the town?
15. How many people died?
16. How many were Jewish?
17. How did they get it?
18. Who said that?
19. Who was prosecuting?
20. Where did it sit?
Answer: 1. "Arbeit Macht Frei" sign
2. the Auschwitz concentration camp
3. Anders Hoegstroem
4. Sweden
5. Two
6. Poland
7. Stockholm, Sweden
8. 10 years if convicted
9. in a village near Torun
10. 70 hours later
11. it had been chopped into three parts
12. "Work Sets You Free"
13. Nazi camps of World War II
14. roughly 210 miles
15. More than 1 million
16. about 90 percent
17. by unscrewing it from one side and pulling off on the other
18. police spokeswoman Agnieszka Szczygiel
19. Robert Parys
20. atop the entrance to the camp

To unambiguously specify the date, dual dating or Old Style (O.S.) and New Style (N.S.) are sometimes used with dates. Dual dating uses two consecutive years because of differences in the starting date of the year, or includes both the Julian and Gregorian dates. Old Style and New Style (N.S.) indicate either whether the start of the Julian year has been adjusted to start on 1 January (N.S.) even though documents written at the time use a different start of year (O.S.), or whether a date conforms to the Julian calendar (O.S.) rather than the Gregorian (N.S.). 

The Gregorian calendar was a reform of the Julian calendar instituted in 1582 by Pope Gregory XIII, after whom the calendar was named, by papal bull Inter gravissimas dated 24 February 1582. The motivation for the adjustment was to bring the date for the celebration of Easter to the time of year in which it was celebrated when it was introduced by the early Church. Although a recommendation of the First Council of Nicaea in 325 specified that all Christians should celebrate Easter on the same day, it took almost five centuries before virtually all Christians achieved that objective by adopting the rules of the Church of Alexandria (see Easter for the issues which arose). What are the answers to this following set of questions: 1. Which calendar is the Gregorian based on?
2. Who decided to do it?
3. Pope Francis?
4. Which?
5. Is that where the word Gregorian came from?
6. Did this happen in the sixteenth century?
7. What was the exact date it was first introduced?
8. Was it made because of Christmas?
9. What celebration was at the root of this new calendar?
10. What was their goal regarding Easter?
Answer:
1. a reform of the Julian calenda
2. the pope
3. No
4. ope Gregory XIII
5. unknown
6. yes
7. 24 February 1582
8. no
9. bring the date for the celebration of Easter t
10. all Christians should celebrate Easter on the same day,