Wolfram Alpha is amazing at discerning the intention of the question.

In the article, the question "How old is the Lincoln Tunnel" struck me as incorrectly formatted for the parser (I know, that's the point), so I asked Siri, "When was the Lincoln Tunnel built." The Wikipedia article on the Lincoln Tunnel was returned. Wolfram Alpha was listed under other sources, so I chose that. The response? "1937"