Is it a good idea to use BERT to answer a FAQ with semantic similarity? I have been looking for BERT for many tasks. I would like to compare the performance to answer an FAQ, using BERT semantic similarity and BERT Q/A. 
However, I'm not sure it is a good idea to use semantic similarity for this task. If it is, do you think it is possible to find a dataset to fine-tune my algorithm?
Maybe the following article can help you:

FAQ Retrieval using Query-Question Similarity and BERT-Based Query-Answer Relevance (2019)

They evaluate their model in localgovFAQ and StackExchange datasets.