Hints for the first 8 levels
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1. Check the comment in the source.

2. Ever hear of online streetmap sites? When you get an egg it should be transparent!

3. Three words start with capitals. Do a little sum with one then take these into Google!

4. When you find the clue read the title again carefully!

5. Does that sign look a bit like a chart you may have seen?

6. Elgar was a bit variable?

7. Got a French dictionary?

8. Only one thing is odd but this is for two reasons!