Given the background description of some cooking related query, summarize the question into a title

I'd like to make roasted garlic, but I don't have an oven, only a gas range. Is there any way for me to get the same results with the range as I would in a conventional oven?
How can I achieve the same flavor and texture as roasted garlic without an oven?

The bag of coffee I am using instructs to "Add 2 1/2 tablespoons (37 ml)" of ground coffee. When I measure out 2 1/2 tablespoons onto my food scale, it only comes out to about 13 ml. Why does my 2 1/2 tablespoon measurement not equal 37 ml?
Why does my 1 tablespoon of coffee grounds not equal 15 ml?

Food bits get stuck in this. Simply washing it under tap doesn't help.How to efficiently remove the stuck particles from this scrubbing pad?Don't have a dishwasher.

How to efficiently remove the food particles stuck in the scrubbing pad?