Pocket Broker
Questions & Answers

Of course. Pocket Broker is a global broker, you can even find great artciles specifically for South American region that talk about the broker's benefits. But it is not just Brazil, the broker is well-established.

As for assets to trade, you need to understand that there are different trading modes, QT, FX and Shares. Quick Trading is different from covnentional CFD trading, it is about price anticipations within a preset time expirary period.
CFDs are available for lots of market classes' instruments, including equtiies.