1) Recently I started to buy some quality traffic for my. So the ctr in the page goes up to 40%. My question is; Is google going to take this as illegal clicks? or Am I going to be penalized for this? or it is normal? I ask this question because normally my websites has an average of 10% o less of CTR.
2) I created a adsense campaing with expensive adsense keywords, like business, loans, mortgage, etc. I tracked this web pages, but I see that Im getting from adsense less that 3 cents for each click. Why Im not getting at least $0.30 o $.50?
You can't assume you'll get paid the "value" of a keyword. That's the value on a Google search page. Bids on publisher sites may be much lower, and as others said, there is also smart pricing, which you should probably read up on.