What was the craziest thing you have done?
What is craziest thing you have ever done?
What is the craziest thing someone has ever done? What was the craziest thing you have done lately? What is the craziest thing you ever did on Quora? What is the craziest thing you have done on Quora? What is the most craziest thing that you have ever done for your loved ones? What is the craziest thing you've done in school? What are the craziest things you have ever done on your trips? What is the craziest thing you have ever done for love? What is the craziest thing you have ever done with a stranger? What's the craziest thing you've ever done on vacation? What is the craziest thing that has ever happened to you at work? What is the craziest question anyone has ever asked you? What's the craziest thing you have ever done to express your feelings? What is the craziest thing you have ever done in a lift? What is the craziest thing you have ever done with your friends? What's the craziest thing you have ever done on Minecraft? What is the craziest thing you have done in college? What is the craziest thing you have ever done to get someone?  What has been the scariest/creepiest/weirdest/craziest experience you've had at your job? What is the craziest dream you've ever got? What was the craziest dream that you've ever had? What is the craziest thing you have ever done inside a lift? What is the craziest thing you've done in your college? What is the craziest thing your partner have done for you? What are the craziest questions ever asked to you? What was the weirdest thing you have ever done in your office? What's the craziest thing you've done for your partner? What is the craziest thing your girlfriend have done for you? What is the craziest or scariest dream you've ever got? What is craziest thing your girlfriend did for you?