Honestly? I don't think Google should try to answer questions. Just give usres a list of sites which contain possible answers, possibly clustered, so different views are represented.
I know this would preclude* any Alexa-type** device, but really, the computer isn't that smart. It's a formula; it either scrapes a popular bit of text from the internet and reads it back to you, or it selects an answer provided by someone at Google. Either way is too subject to abuse.
*In an ironic, perhaps hypocritical move, I used Bing's answer feature to double-check the definition of preclude. Ah, well. It is
useful, just subject to potential abuse.
**Isn't Alexa Amazon's? I thought Google's was called Google Home.
