just wondering: how much of your programming / development is based on your memory and how much do you use Google just for a reminder and how much do you ude Google for the entire code?

I recollect fundamentals only. In this day and age where one is expected to be familiar with many languages, it is impossible to fully understand one without doing so at the expense of another. Sticking to recalling semantics is the better approach, assuming one has internet connectivity. Or books.

Depends on the project. If you're working with a library you know well, you'll be able to do a lot of stuff without internet