What is the generic term for the fictional flying cars used in the film 'Blade Runner?' In the film, they are mainly used by the police to patrol and survey the population. This seven-letter term sounds like it could also describe a part of the game 'Twister.'

Oil is measured in barrels, which is equal to 42 US gallons or 159 liters.

Venezuela leads the world with 300.9 billion barrels of oil reserves – a 17.8 per cent share of global reserves.