Few bugs noted upon Snapshot release

Hi team,

I have been experimenting the first 1.10 snapshot (Snapshot 16w20a), and I have noticed a few issues listed below:

-Upon attacking a polar bear, they were doing just the attack animation, no damaging effect on player. (Note: I did spawn in a polar bear via spawn egg and changed out of game mode 1, but does not hurt me whatsoever)
-Unable to right-click a cat after spawning it in with a spawn egg.
-Should Husks burn in the day as well? Or it's just the way it is?
-Should there be anyways to interact with a zombie horse? If so, then please tell me how.

--TigerBlaze98 (Tiger)