30 Dec 2014 Home » Trivia Crack » How many months have 31 days? How many months have 31 days? Posted in Trivia Crack By emoji On December 30, 2014 Question: How many months have 31 days? Choices: 7 8 5 6 Correct answer: 7 Post Views: 167 Related Posts Who was Katy Perry’s first husband? Which country has never participated in a FIFA World Cup? Which is the biggest country in South America?