Wolfram Alpha does solve some of them. It seems easy to detect the type of question and manually implement a way to parse each. Here's an example that I got wh

Wolfram Alpha does solve some of them. It seems easy to detect the type of question and manually implement a way to parse each. Here's an example that I got while trying to register an API account: https://www.wolframalpha.com/input/?i=One+%2B+3+equals+%3F https://www.wolframalpha.com/input/?i=One+%2B+3+equals+%3F