Hi,
Question 1.
When I lived in Austrailia, an Aussie boy(looking like 15~16 years old) on a bus aksed me a lot of questions. But only thing I can remember is "Do you fight good?". It's been more than 7 years since that, but still I am not sure wether the sentence "Do you fight good?" is correct or not. Gramatically, "Do you fight well?" should be correct;because 'well' is an adverb, but the native speaker said 'good', instead of' well'. I think this might be the same mistake as wrong use of 'nothing' and 'anything'(I can't give the example though).
Question 2
I would like to know the differences.
What is the difference between blah blah blah?
What's the difference between blah blah blah?
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I am one of the most dumb in the world.
I'mone of the most dumb in the world. (really I am.

)
Thanks.