Recent results from D0 and recent Tevatron combinations

We discuss recent results obtained by the D0 experiment at the Fermilab Tevatron $p\bar p$ collider and recent combinations of CDF and D0 measurements. Regarding the top quark mass, we present recent measurements obtained at D0, the final Run~I+Run~II D0 combination, as well as the preliminary Run~I+Run~II CDF+D0 combination. We also discuss the combination of the CDF+D0 measurements of the $p\bar p \to t\bar t$ forward-backward asymmetry. We present the first measurement of the direct CP-violating charge asymmetry in $B^\pm$ mesons decaying to $\mu^\pm D^{0} X$, and discuss the status of the recent evidence for a four-flavor tetraquark state seen at D0.