yes you can
yes
refers to heavy cream/ whipping cream (not whipped cream!!). buy it in the dairy section. usually in pint sizes.
Yes; unless the recipe specifies "light," use heavy whipping cream.
Double cream
The recipe I use calls for half and half so I would say yes.
Depending on the recipe, cool whip should in most cases be interchangeable with whipping cream as a lower calorie substitute. Cool whip is an imitation of whipped cream, called "whipped topping" by its manufacturers.
yes
you could , but not if the recepe calls for whipping cream, it just does not taste the same or has the same consistancy
Whipping cream is a liquid.
Buttermilk has a different acidity than whole milk. If used in a cake mix that calls for whole or 2% milk, a teaspoon of baking soda should be added to balance the acid in the buttermilk.
If you use less cream cheese than the recipe calls for, there will be less cream cheese in the prepared dish. Depending on the other ingredients, the effect may or may not be noticeable. I would suggest using the amount of cream cheese that the recipe calls for. You might be able to use a portion of plain (unflavored) yogurt in addition to the lesser amount of cream cheese to save on calories or fat content, but I would still go with the full amount of cream cheese that the recipe calls for.
No it's not the same as whipping cream. It was made without dairy. I believe it's been discontinued though.