Really tough quiz!

The name says it all really!

1 If Q=1, and O=9, what does Y equal?
2 There is a completely square building. Oh each wall is a window. All of the windows face south. Where is the building?
3 I am more gracious than God, and more evil than the Devil. If you eat me, you will die! What am I?
4 What body of water does Moses supposedly split open in the Bible?
5 A journey that everyone takes, but nobody knows the destination. What does it begin with?
6 How many times does the letter E appear in this sentence?
7 Which question in this quiz had a spelling mistake?