They're land animals (biologically birds, but they don't fly), so the relevant criteria for kashrut are split hooves and cud-chewing. Obviously they have neither trait. Therefore they are not kosher.
It is kosher so long as it is certified kosher.
Fox meat is not kosher. See:More about what is and isn't kosher
It needs to be cooked in a kosher vessel and have kosher ingredients. If purchased, it (or the bakery) should have kosher-certification.
Yes and no. There are many recipes that can be made kosher with kosher substitutes.
Delicatessen places serve kosher food. And if you are talking about 'deli' food, it is usually kosher. _______ Delis are only kosher if they're kosher certified. Most delis aren't kosher.
Yes! You don't need a kosher cookbook. Just remove the non-kosher ingredients.
It would be kosher if it came from a kosher animal.
It can be if it's made with kosher ingredients in a kosher kitchen.
They can eat a kosher diet, and be slaughtered the kosher way.
Fish and chips can be kosher so long as the fish used is a kosher species and the food is prepared in a kosher kitchen with all kosher ingredients.
No. Turtles are not kosher.
No shellfish are kosher.