I am currently going though the process of learning C++ though reading programming books. I understand the concept but find a few days after reading, the concepts start to drift from my memory.
The only thing that keeps them there is working through examples/questions.
Are there any good sites or books that can be recommend which give a large number of examples/questions to work through, with explanations of what each example should help you learn?
You're right. Reading books is not likely to help unless you practice what you learn.
You didn't say what kind of examples you need, and obviously it's important to choose examples which mean something to you - that is, applications which you can see the value of.
Can you suggest some topics which interest you? Like business applications or games, scientific or otherwise?
If your books don't give you tasks to chew on, get better books.
Look at those mentioned here.