Yes you can use these assets for your commercial compiled game.

​Please double check the EULA document. I've provided the links below -

Unity Asset Store

https://unity3d.com/legal/as_terms

Unreal marketplace

https://www.unrealengine.com/en-US/eula/publishing

Yes . All  pack have  animation. 

Yes you can edit these assets using any 3D applications(Maya, Blender, etc). However it is prohibited to resell these edited assets

Please double check the EULA document. I've provided the links below -

Unity Asset Store

https://unity3d.com/legal/as_terms

Unreal marketplace

https://www.unrealengine.com/en-US/eula/publishing

You can not use our media for the promotion of your game. 

Yes, generally they run fine on recent mobile platforms. 

NO.