We all know the story that to stop KumbhaKarna from asking boon from Brahma, all Gods eulogized Saraswati to enter KumbhaKarna's mouth to ask- "I may sleep for years". And Mother Saraswati did it!
Why were Gods so unfair, specially the kind Mother of Universe Saraswati?
Even if one asks for boon- "I may kill Shiva, Brahma and Vishnu." This boon is also to be fulfilled by God, as one has complete right over this also ( even though it is unimaginably sinful).
So why would Gods play so unjust befooling KumbhaKarna, and specially Mother Saraswati, the Goddess of purity(of truth, dharma), would do such a culpable thing.