Think You're Clever ??

Seeing as it's Friday, here is a little test to kill a bit of time before the weekend. It claims if you get 19 or more correct that you're a genius. Well how about 31 ???? Granted, I spent an hour on it and Ingrid did help me with about 4 of them, but still !!!!
The ones I couldn't get were numbers 28 and 33. If you do manage to work them out please let me know in the comments section. If you want to know any of the answers, you can ask me in the same section.