If you want to. Or you can skip both and use a piece of parchment paper to prevent sticking.
Quinoaflakes. Its also gluten free.
NO, totally different thing use bran
Depends on what zucchini bake you're referring too. I substitute cornmeal all the time when I don't have breadcrumbs for a baked zucchini recipe.
Semolina is 100% wheat, so a real alternative is not going to be that similar. You could try ground rice, which is available for the same sort of uses in the UK. Depending on what you want to avoid in the wheat, corn grits might work.
White corn meal. You need the corn meal to make corn muffins.
Yes, polenta is made from crushed dry corn just like cornmeal. In fact you can use cornmeal to cook homemade polenta if you don't have official polenta. I use it all the time. The only difference I've ever noticed is that cornmeal is often ground finer than polenta. If you get course ground cornmeal it's the same thing.
Semolina
Semolina flour is a bit different from regular flour. It is made from wheat. The recipe would probably taste a bit different, but other than that, it should turn out fine! Hope this helped!
Yes, but you will need to spit in it first, as to get the right consistency
Hushpuppies inherently include cornmeal. Making them without cornmeal is like making cornbread without cornmeal. It's a different dish without it. You can make fritters without cornmeal and they are similar to hushpuppies or you can use a mix for hushpuppies but it will contain cornmeal.
Yes it can. I believe it's called ''cornmeal mush''