Input: Read this: Summers are generally warm and sometimes hot. London's average July high is 24 °C (75.2 °F). On average London will see 31 days above 25 °C (77.0 °F) each year, and 4.2 days above 30.0 °C (86.0 °F) every year. During the 2003 European heat wave there were 14 consecutive days above 30 °C (86.0 °F) and 2 consecutive days where temperatures reached 38 °C (100.4 °F), leading to hundreds of heat related deaths. Winters are generally cool and damp with little temperature variation. Snowfall does occur from time to time, and can cause travel disruption when this happens. Spring and autumn are mixed seasons and can be pleasant. As a large city, London has a considerable urban heat island effect, making the centre of London at times 5 °C (9 °F) warmer than the suburbs and outskirts. The effect of this can be seen below when comparing London Heathrow, 15 miles west of London, with the London Weather Centre, in the city centre.
Question: Approximately how many days in a given year will London experience temperatures above 25 degrees Celsius (or 77 degrees Farenheit?

Output: 31


QUES: During the period of North–South division, Nanjing remained the capital of the Southern dynasties for more than two and a half centuries. During this time, Nanjing was the international hub of East Asia. Based on historical documents, the city had 280,000 registered households. Assuming an average Nanjing household had about 5.1 people at that time, the city had more than 1.4 million residents.

What is the estimated population of Nanjing during that time?
What is the answer?
ANS: more than 1.4 million residents


QUES: Kanye West began his early production career in the mid-1990s, making beats primarily for burgeoning local artists, eventually developing a style that involved speeding up vocal samples from classic soul records. His first official production credits came at the age of nineteen when he produced eight tracks on Down to Earth, the 1996 debut album of a Chicago rapper named Grav. For a time, West acted as a ghost producer for Deric "D-Dot" Angelettie. Because of his association with D-Dot, West wasn't able to release a solo album, so he formed and became a member and producer of the Go-Getters, a late-1990s Chicago rap group composed of him, GLC, Timmy G, Really Doe, and Arrowstar. His group was managed by John "Monopoly" Johnson, Don Crowley, and Happy Lewis under the management firm Hustle Period. After attending a series of promotional photo shoots and making some radio appearances, The Go-Getters released their first and only studio album World Record Holders in 1999. The album featured other Chicago-based rappers such as Rhymefest, Mikkey Halsted, Miss Criss, and Shayla G. Meanwhile, the production was handled by West, Arrowstar, Boogz, and Brian "All Day" Miller.
What firm managed Kanye West's rap group? 

ANS: Hustle Period


Cubism began between 1907 and 1911. Pablo Picasso's 1907 painting Les Demoiselles d'Avignon has often been considered a proto-Cubist work. Georges Braque's 1908 Houses at L’Estaque (and related works) prompted the critic Louis Vauxcelles to refer to bizarreries cubiques (cubic oddities). Gertrude Stein referred to landscapes made by Picasso in 1909, such as Reservoir at Horta de Ebro, as the first Cubist paintings. The first organized group exhibition by Cubists took place at the Salon des Indépendants in Paris during the spring of 1911 in a room called 'Salle 41'; it included works by Jean Metzinger, Albert Gleizes, Fernand Léger, Robert Delaunay and Henri Le Fauconnier, yet no works by Picasso or Braque were exhibited.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was the name of the room that the last exhibition of Cubists took place?
Ah, so.. unanswerable


Question: White LEDs can also be made by coating near-ultraviolet (NUV) LEDs with a mixture of high-efficiency europium-based phosphors that emit red and blue, plus copper and aluminium-doped zinc sulfide (ZnS:Cu, Al) that emits green. This is a method analogous to the way fluorescent lamps work. This method is less efficient than blue LEDs with YAG:Ce phosphor, as the Stokes shift is larger, so more energy is converted to heat, but yields light with better spectral characteristics, which render color better. Due to the higher radiative output of the ultraviolet LEDs than of the blue ones, both methods offer comparable brightness. A concern is that UV light may leak from a malfunctioning light source and cause harm to human eyes or skin.
Try to answer this question if possible: The method of coating NUVs less efficient than what other LEDs?
Answer: blue


Question: In January 2010, YouTube launched an experimental version of the site that used the built-in multimedia capabilities of web browsers supporting the HTML5 standard. This allowed videos to be viewed without requiring Adobe Flash Player or any other plug-in to be installed. The YouTube site had a page that allowed supported browsers to opt into the HTML5 trial. Only browsers that supported HTML5 Video using the H.264 or WebM formats could play the videos, and not all videos on the site were available.
Try to answer this question if possible:  What format besides H.264 was playable with HTML4?
Answer:
unanswerable