"WHAT is the name of Lord Agni's wife?" asks Yooti Bhansali, drawing a blank from this writer. "Let me give you a clue. Where can you spot agni in an everyday setting?" she says. "A havan?" we guess. "Yes, and what word is uttered the most during rituals in a havan?" she persists. "Swaha!" "There's your answer," she congratulates us, having demonstrated what casual quizzing is about. "Quizzing is not just about knowing facts, but also working out stuff in the head," says Bhansali of Thinq2Win, which was founded by Ramanand Janardhanan, the youngest BBC Mastermind India winner at 22, and BV Harish Kumar, who has won and hosted quizzes across India. The organisation is hosting Qtopia, an all-day festival of quizzes spanning topics and formats.