Where clause to get the refine data

1. $insert = DB::table('student')->where('id','3')->get();
2. $insert = DB::table('student')->where('id','3')->orWhere('name','anmol')->get();

3. $insert = DB::table('student')->whereBetween('id', [2,6])->get();
4. $insert = DB::table('student')->whereIn('id', [2,3,6,8])->get();

5. $insert = DB::table('student')->whereIn('name', 'anmol')
->orWhere(function($query){
$query->where('name','webtut');
$query->where('id', '<' ,'webtut');
})->get();