In the 18th and 19th century, green was associated with the romantic movement in literature and art. The French philosopher Jean-Jacques Rousseau celebrated the virtues of nature, The German poet and philosopher Goethe declared that green was the most restful color, suitable for decorating bedrooms. Painters such as John Constable and Jean-Baptiste-Camille Corot depicted the lush green of rural landscapes and forests. Green was contrasted to the smoky grays and blacks of the Industrial Revolution.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Which German poet and philospher declared green to be the most restful color?
Ah, so.. Goethe

In an attempt to curb air pollution in New Delhi, which gets worst during the winter, a temporary alternate-day travel scheme for cars using the odd- and even-numbered license plates system was announced by Delhi government in December 2015. In addition, trucks will be allowed to enter India's capital only after 11 p.m., two hours later than the existing restriction. The driving restriction scheme is planned to be implemented as a trial from January 1, 2016 for an initial period of 15 days. The restriction will be in force between 8 a.m. and 8 p.m., and traffic will not be restricted on Sundays. Public transportation service will be increased during the restriction period.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What method was introduced in December 2015 to reduce New Delhi's air pollution?
Ah, so.. alternate-day travel

Portuguese cuisine is diverse. The Portuguese consume a lot of dry cod (bacalhau in Portuguese), for which there are hundreds of recipes. There are more than enough bacalhau dishes for each day of the year. Two other popular fish recipes are grilled sardines and caldeirada, a potato-based stew that can be made from several types of fish. Typical Portuguese meat recipes, that may be made out of beef, pork, lamb, or chicken, include cozido a portuguesa, feijoada, frango de churrasco, leitao (roast suckling pig) and carne de porco a alentejana. A very popular northern dish is the arroz de sarrabulho (rice stewed in pigs blood) or the arroz de cabidela (rice and chickens meat stewed in chickens blood).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is caldeirada?
Ah, so..
a potato-based stew that can be made from several types of fish