Problem: YouTube:

In November 2008, 720p HD support was added. At the time of the 720p launch, the YouTube player was changed from a 4:3 aspect ratio to a widescreen 16:9. With this new feature, YouTube began a switchover to H.264/MPEG-4 AVC as its default video compression format. In November 2009, 1080p HD support was added. In July 2010, YouTube announced that it had launched a range of videos in 4K format, which allows a resolution of up to 40963072 pixels. In June 2015, support for 8K resolution was added, with the videos playing at 76804320 pixels.

What did youtube change its screen format to from 4:3?
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A: widescreen 16:9

Problem: Beyonce's first solo recording was a feature on Jay Z's "'03 Bonnie & Clyde" that was released in October 2002, peaking at number four on the U.S. Billboard Hot 100 chart. Her first solo album Dangerously in Love was released on June 24, 2003, after Michelle Williams and Kelly Rowland had released their solo efforts. The album sold 317,000 copies in its first week, debuted atop the Billboard 200, and has since sold 11 million copies worldwide. The album's lead single, "Crazy in Love", featuring Jay Z, became Beyonce's first number-one single as a solo artist in the US. The single "Baby Boy" also reached number one, and singles, "Me, Myself and I" and "Naughty Girl", both reached the top-five. The album earned Beyonce a then record-tying five awards at the 46th Annual Grammy Awards; Best Contemporary R&B Album, Best Female R&B Vocal Performance for "Dangerously in Love 2", Best R&B Song and Best Rap/Sung Collaboration for "Crazy in Love", and Best R&B Performance by a Duo or Group with Vocals for "The Closer I Get to You" with Luther Vandross.
Beyonce's first number one song was which song?
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Answer: Crazy in Love

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
According to the writer of Luke, Mary was a relative of Elizabeth, wife of the priest Zechariah of the priestly division of Abijah, who was herself part of the lineage of Aaron and so of the tribe of Levi.[Luke 1:5;1:36] Some of those who consider that the relationship with Elizabeth was on the maternal side, consider that Mary, like Joseph, to whom she was betrothed, was of the House of David and so of the Tribe of Judah, and that the genealogy of Jesus presented in Luke 3 from Nathan, third son of David and Bathsheba, is in fact the genealogy of Mary,[need quotation to verify] while the genealogy from Solomon given in Matthew 1 is that of Joseph. (Aaron's wife Elisheba was of the tribe of Judah, so all their descendants are from both Levi and Judah.)[Num.1:7 & Ex.6:23]
Who was the third son of David and Bathsheba?
A: Nathan

Context and question: Migration plays an important role in Thuringia. The internal migration shows a strong tendency from rural areas towards the big cities. From 2008 to 2012, there was a net migration from Thuringia to Erfurt of +6,700 persons (33 per 1000 inhabitants), +1,800 to Gera (19 per 1000), +1,400 to Jena (14 per 1000), +1,400 to Eisenach (33 per 1000) and +1,300 to Weimar (21 per 1000). Between Thuringia and the other German states, the balance is negative: In 2012, Thuringia lost 6,500 persons to other federal states, the most to Bavaria, Saxony, Hesse and Berlin. Only with Saxony-Anhalt and Brandenburg the balance is positive. The international migration is fluctuating heavily. In 2009, the balance was +700, in 2010 +1,800, in 2011 +2,700 and in 2012 +4,800. The most important countries of origin of the Thuringia migrants from 2008 to 2012 were Poland (+1,700), Romania (+1,200), Afghanistan (+1,100) and Serbia/Montenegro/Kosovo (+1,000), whereas the balance was negative with Switzerland (2,800) and Austria (900).
How many migrants went to Eisenach?
Answer: +1,400

Question: Poland has historically been staunchly pro-American, dating back to General Tadeusz Kosciuszko and Casimir Pulaski's involvement in the American Revolution. This pro-American stance was reinforced following favorable American intervention in World War I (leading to the creation of an independent Poland) and the Cold War (culminating in a Polish state independent of Soviet influence). Poland contributed a large force to the "Coalition of the Willing" in Iraq. A quote referring to Poland as "the 51st state" has been attributed to James Pavitt, then Central Intelligence Agency Deputy Director for Operations, especially in connection to extraordinary rendition.
Is there an answer to this question: To who was a quote referring to Poland as a Soviet state attributed?

Answer: unanswerable

Question: The referee may punish a player's or substitute's misconduct by a caution (yellow card) or dismissal (red card). A second yellow card at the same game leads to a red card, and therefore to a dismissal. A player given a yellow card is said to have been "booked", the referee writing the player's name in his official notebook. If a player has been dismissed, no substitute can be brought on in their place. Misconduct may occur at any time, and while the offences that constitute misconduct are listed, the definitions are broad. In particular, the offence of "unsporting behaviour" may be used to deal with most events that violate the spirit of the game, even if they are not listed as specific offences. A referee can show a yellow or red card to a player, substitute or substituted player. Non-players such as managers and support staff cannot be shown the yellow or red card, but may be expelled from the technical area if they fail to conduct themselves in a responsible manner.
Is there an answer to this question: How many yellow cards lead to a blue card?

Answer:
unanswerable