Problem: The largest shareholder on the Arsenal board is American sports tycoon Stan Kroenke. Kroenke first launched a bid for the club in April 2007, and faced competition for shares from Red and White Securities, which acquired its first shares off David Dein in August 2007. Red & White Securities was co-owned by Russian billionaire Alisher Usmanov and Iranian London-based financier Farhad Moshiri, though Usmanov bought Moshiri's stake in 2016. Kroenke came close to the 30% takeover threshold in November 2009, when he increased his holding to 18,594 shares (29.9%). In April 2011, Kroenke achieved a full takeover by purchasing the shareholdings of Nina Bracewell-Smith and Danny Fiszman, taking his shareholding to 62.89%. As of June 2015, Kroenke owns 41,698 shares (67.02%) and Red & White Securities own 18,695 shares (30.04%). Ivan Gazidis has been the club's Chief Executive since 2009.
In what year did Kreonke achieve take over of Arsenal stock?
The answer is the following: April 2011

Problem: The term Carnival is traditionally used in areas with a large Catholic presence. However, the Philippines, a predominantly Roman Catholic country, does not celebrate Carnival anymore since the dissolution of the Manila Carnival after 1939, the last carnival in the country. In historically Lutheran countries, the celebration is known as Fastelavn, and in areas with a high concentration of Anglicans and Methodists, pre-Lenten celebrations, along with penitential observances, occur on Shrove Tuesday. In Eastern Orthodox nations, Maslenitsa is celebrated during the last week before Great Lent. In German-speaking Europe and the Netherlands, the Carnival season traditionally opens on 11/11 (often at 11:11 a.m.). This dates back to celebrations before the Advent season or with harvest celebrations of St. Martin's Day.
What is the Carnival known as in countries which are mostly Lutheran?
The answer is the following: Fastelavn

Problem: It would appear that living organisms are remarkably inefficient (in the physical sense) in their use of the energy they receive (chemical energy or radiation), and it is true that most real machines manage higher efficiencies. In growing organisms the energy that is converted to heat serves a vital purpose, as it allows the organism tissue to be highly ordered with regard to the molecules it is built from. The second law of thermodynamics states that energy (and matter) tends to become more evenly spread out across the universe: to concentrate energy (or matter) in one specific place, it is necessary to spread out a greater amount of energy (as heat) across the remainder of the universe ("the surroundings").[note 3] Simpler organisms can achieve higher energy efficiencies than more complex ones, but the complex organisms can occupy ecological niches that are not available to their simpler brethren. The conversion of a portion of the chemical energy to heat at each step in a metabolic pathway is the physical reason behind the pyramid of biomass observed in ecology: to take just the first step in the food chain, of the estimated 124.7 Pg/a of carbon that is fixed by photosynthesis, 64.3 Pg/a (52%) are used for the metabolism of green plants, i.e. reconverted into carbon dioxide and heat.
What states that energy tends to become more evenly spread out across the universe?
The answer is the following: The second law of thermodynamics

Problem: Among the challenges being faced to improve the efficiency of LED-based white light sources is the development of more efficient phosphors. As of 2010, the most efficient yellow phosphor is still the YAG phosphor, with less than 10% Stoke shift loss. Losses attributable to internal optical losses due to re-absorption in the LED chip and in the LED packaging itself account typically for another 10% to 30% of efficiency loss. Currently, in the area of phosphor LED development, much effort is being spent on optimizing these devices to higher light output and higher operation temperatures. For instance, the efficiency can be raised by adapting better package design or by using a more suitable type of phosphor. Conformal coating process is frequently used to address the issue of varying phosphor thickness.
What is the most efficient yellow phosphor?
The answer is the following:
YAG phosphor