Recent evidence suggests that all dromaeosaurs (including both Velociraptor and Deinonychus) had feathers. Also, a Velociraptor has a long skull, nothing like in this picture. This does look like a Deinonychus.
Yes, I'm sure. While there is no direct evidence that Deinonychus in particular had feathers, there is also no evidence to prove otherwise. And since many of its close relatives (such as Velociraptor) definitely had feathers, it is reasonable to assume that Deinonychus had feathers too.
Just kidding. But seriously, where did you get that info? I talked to an actual palaeontologist just the other day, and he said that, according to the most recent evidence, all raptors (if not all theropods) had feathers.