It seems the answer to "this sentence is false" also comes from Wolfram Alpha, which misunderstands and just gives the definition for "sentence":
https://www.wolframalpha.com/input/?i=this+sentence+is+false
https://www.wolframalpha.com/input/?i=this+sentence+is+false
Evidence for this lies in the fact that for the last hour, WolframAlpha was down for my bot due to excessive requests- and yet, no-one has noticed until this point- proving that there is significantly more to the algorithm then merely scraping their API.