I think there are lot of similar problems. Here are two in vertex version and one in edge version: 1) Does a given graph have an **independent** feedback vertex set? (we don't care about the size of the set). This problem is NP-complete; the proof can be derived from the proof of Theorem 2.1 in [Garey, Johnson & Stockmeyer](http://www.sciencedirect.com/science/article/pii/0304397576900591#). 2) Does a given graph have a vertex cover **that induces a tree**? (we don't care about the size of the set). This [paper](http://www.sciencedirect.com/science/article/pii/S0166218X98001164) gives an NP-completeness proof for this problem (Theorem 2); even for bipartite graphs. 3) Does a given graph have a dominating edge set **the edges of which form an induced $1$-regular subgraph**? (also known as dominating induced matching or efficient edge dominating; the vertex version is given in the second answer by Mohammad. Again, we don't care about the size of the set). This problem is NP-complete (well-known, first proved [here](http://www.sciencedirect.com/science/article/pii/002001909390084M)), even for planar bipartite graphs. The first two problems are particular examples of the problem class called stable-$\pi$: Let $\pi$ be a graph property. Does a given graph have a vertex cover satisfying $\pi$? More NP-complete cases as well as polynomially solvable cases can be found in [this](http://www.sciencedirect.com/science/article/pii/S0166218X98001164) and in [this](http://www.sciencedirect.com/science/article/pii/S0166218X13003119) paper (and the refs given there) .