If you are replying to a trivia or brain teaser question, please use the following color codes to hide your answers:
[quote]If your post is going to be the lighter colored box, or [color=#EFEFEF]
[/color], then use the code around your answer.[/quote]
[quote]If your post will be the darker colored box, or [color=#DEE3E7]
[/color], then use the code around your answer. [/quote]
Just encoded it with white is not enough to keep it hidden.
These codes should make it so that your answer is only visible when highlighted and keeps it out of the view of people who might not want to see it if they want to try solving it themselves.
Your friendly, puzzling SF&G moderator,