Try melted butter. Or to reduce fat, some recipes for baked goods will work well using applesauce as a substitute for the oils.
If for baking, you can use sunflower oil.
Yes. Yes you can.
yes
For most cookies you can't use oil in place of shortening.
You can but you are going to have a slightly different texture.
that is stupid. No u can't ^^ actually YOU'RE stupid, yes you can.
No, instead use lime powder
no
Butter or margarine can be used instead, adding a couple of extra tablespoons per cup of shortening called for in a recipe.
Yep, vegetable oil is always the best to use when you are baking.
baking soda
yes