Problem: West's first six solo studio albums, all of which have gone platinum, have received numerous awards and critical acclaim. All of his albums have been commercially successful, with Yeezus, his sixth solo album, becoming his fifth consecutive No. 1 album in the U.S. upon release. West has had six songs exceed 3 million in digital sales as of December 2012, with "Gold Digger" selling 3,086,000, "Stronger" selling 4,402,000, "Heartless" selling 3,742,000, "E.T." selling over 4,000,000, "Love Lockdown" selling over 3,000,000, and "Niggas in Paris" selling over 3,000,000, placing him third in overall digital sales of the past decade. He has sold over 30 million digital songs in the United States making him one of the best-selling digital artists of all-time.
How many total digital songs has Kanye West sold in the US?
The answer is the following: 30 million

Problem: Saint Helena produces what is said to be the most expensive coffee in the world. It also produces and exports Tungi Spirit, made from the fruit of the prickly or cactus pears, Opuntia ficus-indica ("Tungi" is the local St Helenian name for the plant). Ascension Island, Tristan da Cunha and Saint Helena all issue their own postage stamps which provide a significant income.
What is Tungi Spirit made out of?
The answer is the following: Opuntia ficus-indica

Problem: The first attempts to use standard-frequency single-phase AC were made in Hungary as far back as 1923, by the Hungarian Kálmán Kandó on the line between Budapest-Nyugati and Alag, using 16 kV at 50 Hz. The locomotives carried a four-pole rotating phase converter feeding a single traction motor of the polyphase induction type at 600 to 1,100 V. The number of poles on the 2,500 hp motor could be changed using slip rings to run at one of four synchronous speeds. The tests were a success so, from 1932 until the 1960s, trains on the Budapest-Hegyeshalom line (towards Vienna) regularly used the same system. A few decades after the Second World War, the 16 kV was changed to the Russian and later French 25 kV system.
How could the locomotives run on four speed levels?
The answer is the following: motor could be changed using slip rings

Problem: In the 1874 general election, Disraeli was returned to power. He passed the Public Worship Regulation Act 1874, which removed Catholic rituals from the Anglican liturgy and which Victoria strongly supported. She preferred short, simple services, and personally considered herself more aligned with the presbyterian Church of Scotland than the episcopal Church of England. He also pushed the Royal Titles Act 1876 through Parliament, so that Victoria took the title "Empress of India" from 1 May 1876. The new title was proclaimed at the Delhi Durbar of 1 January 1877.
Whic act, passed by Disraeli, allowed him to alter the Anglician liturgy?
The answer is the following:
Public Worship Regulation Act 1874