Question: New Delhi is a major junction in the Indian railway network and is the headquarters of the Northern Railway. The five main railway stations are New Delhi railway station, Old Delhi, Nizamuddin Railway Station, Anand Vihar Railway Terminal and Sarai Rohilla. The Delhi Metro, a mass rapid transit system built and operated by Delhi Metro Rail Corporation (DMRC), serves many parts of Delhi and the neighbouring cities Faridabad, Gurgaon, Noida and Ghaziabad. As of August 2011, the metro consists of six operational lines with a total length of 189 km (117 mi) and 146 stations, and several other lines are under construction. It carries millions of passengers every day. In addition to the Delhi Metro, a suburban railway, the Delhi Suburban Railway exists.
Try to answer this question if possible: What Indian city is the headquarters of the Northern Railway?
Answer: New Delhi
Question: The hypothesis that plant growth and development is coordinated by plant hormones or plant growth regulators first emerged in the late 19th century. Darwin experimented on the movements of plant shoots and roots towards light and gravity, and concluded "It is hardly an exaggeration to say that the tip of the radicle . . acts like the brain of one of the lower animals . . directing the several movements". About the same time, the role of auxins (from the Greek auxein, to grow) in control of plant growth was first outlined by the Dutch scientist Frits Went. The first known auxin, indole-3-acetic acid (IAA), which promotes cell growth, was only isolated from plants about 50 years later. This compound mediates the tropic responses of shoots and roots towards light and gravity. The finding in 1939 that plant callus could be maintained in culture containing IAA, followed by the observation in 1947 that it could be induced to form roots and shoots by controlling the concentration of growth hormones were key steps in the development of plant biotechnology and genetic modification.
Try to answer this question if possible: What can plant callus be coaxed into doing?
Answer: form roots and shoots
Question: Kievan Rus', although sparsely populated compared to Western Europe, was not only the largest contemporary European state in terms of area but also culturally advanced. Literacy in Kiev, Novgorod and other large cities was high. As birch bark documents attest, they exchanged love letters and prepared cheat sheets for schools. Novgorod had a sewage system and wood paving not often found in other cities at the time. The Russkaya Pravda confined punishments to fines and generally did not use capital punishment. Certain rights were accorded to women, such as property and inheritance rights.
Try to answer this question if possible: Despite being much smaller than wester europe, what they known for being?
Answer: the largest contemporary European state
Question: During the last three minutes of a half, the penalty for failure to place the ball in play within the 20-second play clock, known as "time count" (this foul is known as "delay of game" in American football), is dramatically different from during the first 27 minutes. Instead of the penalty being 5 yards with the down repeated, the base penalty (except during convert attempts) becomes loss of down on first or second down, and 10 yards on third down with the down repeated. In addition, as noted previously, the referee can give possession to the defence for repeated deliberate time count violations on third down.
Try to answer this question if possible: On what down can the 20 second play clock give possession to the defense?
Answer:
unanswerable