Question: there are how many puranas?
Answer: There are traditionally 18 Puranas, but there are several different lists of the 18, as well as some lists of more or fewer than 18. The earliest Puranas, composed perhaps between 350 and 750 ce, are the Brahmanda, Devi, Kurma, Markandeya, Matsya, Vamana, Varaha, Vayu, and Vishnu.