Tell Me In Simple Terms

A collection of 100+ tough questions; answers of which you always wanted but did not know whom to ask (and internet did not help either). Why supermarkets offers buy one get one free rather than 50% reduction in price? Why cars have gearboxes? Why Lehman Brother failed? Do we always look at distorted map of the world? Did software firms really lose revenue because of piracy? What happens when a company goes into administration? Why some people think Facebook as evil? Is having two engines in an aircraft safer than single engine? What is your chance of winning a lottery? and much more!