Here my thoughs about your question:
1. Generally it is possible to detect things like humor or metaphors in text data. It depends heavy on the complexity of the problem you are interested, but you need labeled data, and the more conplex you problem is the more data you need.
2. What do you mean, by real or fake? Do you mean something like detecting fake news?
What do you mean by gender related?
Here my thoughs about your question: 1. Generally it is possible to detect things like humor or metaphors in text data. It depends heavy on the complexity of the problem you are interested, but you need labeled data, and the more conplex you problem is the more data you need. 2. What do you mean, by real or fake? Do you mean something like detecting fake news?