i can get these out of the way fast for him
q1, because they eat them!!!!!!!
q2, dont know, try posting them a silly survey and ask them yourself
q3, generally, if you dont cast, you dont put a fly on the water. this reduces your chance of catching a trout dramatically

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q4, you're obviously not married are you?
q5, let me see, that 4" tarpon lure may just work on a wild welsh brownie

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q6, try posting on a swedish fly fishing forum and ask them. allthough i think you'll find you'll get similar answers to those posted here.
q7, why dont you actually try fly fishing yourself before posting an idiotic survey. you may even enjoy it!!!!!
as an obvious non fisherman, why bother posting a pointless set of questions with very obvious answers?