1. The recommended length of title is somewhere between 55 to 60 characters including spaces, because more than this likely to be truncated in the search results. So try to keep the title length to 55 characters including spaces for best possible rendering. You can go up to 60 characters in total, but try not to exceed this.
2.The suggested length of meta description is somewhere between 150 to 160 characters including spaces. You can even use fewer characters and it works great if your descriptions looks appealing and read better but don't try to create lengthy descriptions that doesn't make much sense or description with more than 160 characters.