Life is like....the back of a math book?

Remember at the back of a math textbook that the answers for the odd numbered problems are written in for you?
Every now and then, I wish life were like that.
It's not that I want the answers, but when I'm working on the even numbered problems, it's good to have a similar problem to look back on and have that answer. It always made me feel more confident when I would finish the even numbered ones.