Problem: Iran:

Iranian scientists outside Iran have also made some major contributions to science. In 1960, Ali Javan co-invented the first gas laser, and fuzzy set theory was introduced by Lotfi Zadeh. Iranian cardiologist, Tofy Mussivand invented and developed the first artificial cardiac pump, the precursor of the artificial heart. Furthering research and treatment of diabetes, HbA1c was discovered by Samuel Rahbar. Iranian physics is especially strong in string theory, with many papers being published in Iran. Iranian-American string theorist Kamran Vafa proposed the Vafa-Witten theorem together with Edward Witten. In August 2014, Maryam Mirzakhani became the first-ever woman, as well as the first-ever Iranian, to receive the Fields Medal, the highest prize in mathematics.

Which Iranian scientist co-invented the first gas laser?
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A: Ali Javan

Problem: For an unprecedented eight consecutive years, from the 200304 television season through the 201011 season, either its performance or result show had been ranked number one in U.S. television ratings. The popularity of American Idol however declined, and on May 11, 2015, Fox announced that the series would conclude its run in its fifteenth season.
How many consecutive years did American Idol been ranked number one in ratings?
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Answer: eight

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Under the Koppen climate classification, using the 0 C (32 F) coldest month (January) isotherm, New York City itself experiences a humid subtropical climate (Cfa) and is thus the northernmost major city on the North American continent with this categorization. The suburbs to the immediate north and west lie in the transition zone from a humid subtropical (Cfa) to a humid continental climate (Dfa). The area averages 234 days with at least some sunshine annually, and averages 57% of possible sunshine annually, accumulating 2,535 hours of sunshine per annum. The city falls under USDA 7b Plant Hardiness zone.
What month in New York City is the coldest?
A: January

Context and question: In 2006, Dell acknowledged that it had problems with customer service. Issues included call transfers of more than 45% of calls and long wait times. Dell's blog detailed the response: "We're spending more than a $100 million and a lot of blood, sweat and tears of talented people to fix this." Later in the year, the company increased its spending on customer service to $150 million. Despite significant investment in this space, Dell continues to face public scrutiny with even the company's own website littered with complaints regarding the issue escalation process.[original research?]
What amount did Dell decrease its customer service budget to?
Answer: unanswerable

Question: The existence of literary and colloquial readings (), called thak-im (), is a prominent feature of some Hokkien dialects and indeed in many Sinitic varieties in the south. The bulk of literary readings (, bun-thak), based on pronunciations of the vernacular during the Tang Dynasty, are mainly used in formal phrases and written language (e.g. philosophical concepts, surnames, and some place names), while the colloquial (or vernacular) ones (, peh-thak) are basically used in spoken language and vulgar phrases. Literary readings are more similar to the pronunciations of the Tang standard of Middle Chinese than their colloquial equivalents.
Is there an answer to this question: What are Sinitic and philosophical concepts called?

Answer: unanswerable

QUES: Observing that face-to-face communication of the type that online videos convey has been "fine-tuned by millions of years of evolution", TED curator Chris Anderson referred to several YouTube contributors and asserted that "what Gutenberg did for writing, online video can now do for face-to-face communication". Anderson asserted that it's not far-fetched to say that online video will dramatically accelerate scientific advance, and that video contributors may be about to launch "the biggest learning cycle in human history." In education, for example, the Khan Academy grew from YouTube video tutoring sessions for founder Salman Khan's cousin into what Forbes' Michael Noer called "the largest school in the world", with technology poised to disrupt how people learn.

Who is the founder of the Khan Academy?
What is the answer?
ANS:
Salman Khan