farce - A deceptive action that someone tries to fool others into believing that he takes it seriously
Everyone in town knew that a bridge at the busy intersection was needed, but they felt that all the Mayor's activity about the subject was just a farce because he didn't really take the problem seriously.
fairytale - A children's story about magical and imaginary beings and lands; or something that is too good to be true or seems unreal.
He told a fairytale about how he got the job, but no one believed him, and people suspected that he had a relative in management.