Conversation so far:
what language did the sinhalese people use?
The Sinhalese speak Sinhala, also known as "Helabasa".
is it a widely known language?
CANNOTANSWER.
Are there any other interesting aspects about this article?
Folk tales like Mahadana Muttha saha Golayo and Kawate Andare continue to entertain children today.

Question: what were the folk tales about?
Self-contained rewrite: what were the folk tales of the Sinhalese people about?