2 problems

Let $p\colon E\to B$ be a Serre fibration, where $B$ is a locally arcwise connected metric space, and suppose that every fiber of $p$ is homeomorphic to a fixed manifold $M^n$ of d…

Let $p\colon E\to B$ be a Serre fibration of metric spaces, where $B$ is locally arcwise connected, and suppose that every fiber of $p$ is homeomorphic to a given manifold $M^n$ of…