Originally they had come from the Bishops website, and I had a link on my main page to their site. But the quizzes have disappeared and it was a dead link so I got rid of it. These quizzes were always excellent brain teasers, and the answers sent people back to the Catechism to do some more study and reflection.
The Main reason here: We all need to know our faith better.
Do one at a time. Spend some time with your catechism. Think about your faith.
The Quizzes can be found here at this link. There is also a new link on the main page.
There are about 50 quizzes. It may take me several days to put them all up.