Помогите! Few,a few, little, a little

1. a few apples (исчисл.), a little apple juice (неисчисл.)
2. a little vinegar (неисчисл.) ,  a little olive oil (неисчисл.)
3. a little money (неисчисл.) , a few coins (исчисл.)
4. a few toys (исчисл.), a few books (исчисл.)
5. a few children(исчисл.), a little water (неисчисл.)
6. a few passengers (исчисл.), a few hostesses (исчисл.)