If you don't know the answer to one of them, here's how to cheat. Just write in the cell "=$answers.B6" where B6 is the cell number of the answer cell.
This works for me because I'm using Open Office. Just been told it doesn't work in Excel.
I was doing it this afternoon on the laptop while listening to the radio, and my mum spotted it so mum and dad are now sitting at the table with it... they are addicted.
but unless theres no answers on the web, it may be the only way to get us out of our misery on some of them. I really wish Chris and Dave hadnt of continued to go on about it today.