Let $G$ be a finite group and $H$ a subgroup.
Let $\mathcal{L}(H \subset G )$ be the lattice of all the intermediate subgroups between $H$ and $G$.
Let the lattice $\mathcal{L}$ as follows:
Question: Can $\mathcal{L}$ be realized as an intermediate subgroups lattice?
Remark: I've checked by GAP that there is no example for $[G:H]<32$.
Yes. The first example was given by Aschbacher in the following 2008 paper (example 8.5).
Before this paper, Watatani (1994) had proven that with two possible exceptions, any finite lattice with $\leq 6$ elements could be realized as an intermediate subfactor lattice. In the paper above Aschbacher finds examples for these two lattices.