On February 18, 2015, Canadian Transport Minister Lisa Raitt announced that Canada has agreed to pay the entire cost to build a $250 million U.S. Customs plaza adjacent to the planned new DetroitWindsor bridge, now the Gordie Howe International Bridge. Canada had already planned to pay for 95 per cent of the bridge, which will cost $2.1 billion, and is expected to open in 2020. "This allows Canada and Michigan to move the project forward immediately to its next steps which include further design work and property acquisition on the U.S. side of the border," Raitt said in a statement issued after she spoke in the House of Commons.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When is the Gordie Howe International Bridge expected to open?
Ah, so.. 2020

At the beginning of World War I, East Prussia became a theatre of war when the Russian Empire invaded the country. The Russian Army encountered at first little resistance because the bulk of the German Army had been directed towards the Western Front according to the Schlieffen Plan. Despite early success and the capture of the towns of Rastenburg and Gumbinnen, in the Battle of Tannenberg in 1914 and the Second Battle of the Masurian Lakes in 1915, the Russians were decisively defeated and forced to retreat. The Russians were followed by the German Army advancing into Russian territory.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who was the German Army fighting on the Western Front?
Ah, so.. unanswerable

Stansted Airport, north east of London in Essex, is a local UK hub and Luton Airport to the north of London in Bedfordshire, caters mostly for cheap short-haul flights. London City Airport, the smallest and most central airport, in Newham, East London, is focused on business travellers, with a mixture of full service short-haul scheduled flights and considerable business jet traffic. London Southend Airport, east of London in Essex, is a smaller, regional airport that mainly caters for cheap short-haul flights.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Which local UK airport hub is located in Essex?
Ah, so..
Stansted Airport