Solutions were stepping stones to my success. I am mature enough to not be tempted without trying out the problem. I sleep over it and then at last looking at the solution, if I ever find myself at my wit's end. That is because I have a firm understanding that there is no shortcuts to success. Having come from a third world country where cheating on oneself is delaying even the basic resources to get a job, I was raised with peers finding the 'peeping at solutions' an abhorrent act. Its a big shameful thing to do in my culture.

Solutions are the way I learn the thought process of author if he arrived at the final answer in a better way. Solutions expose errors in questions. Errors and typos in Indian texts were way more a common place in questions than in solutions. There was simply not a chance for a solution to have typo or logical errors.

If there are no solutions, I'd simply put it for later until I am proficient in the subject and want to try out the problems with confidence. There is always this insecurity when it comes to dealing with logic. Little things can slip in abstract thinking pretty easily. Silly mistakes take a toll. People like myself prefer to solve problems individually at our own pace. Solutions are a must for me. Of course, that 'later' almost always never comes.