It depends. If you are Ashkenaz, then you can't eat popcorn on Passover (Ashkenazim don't eat legumes on passover, and corn is a legume). If you are of a Sefard (who do eat legumes on Passover) origin, then you technically can eat popcorn on Passover, but it must have a reliable kosher for Passover certification.
Correction:Corn is not a legume. The reason that corn isn't eaten during Passover is because of a naming error when it came to Europe and it became associated with one of the grains that the Torah forbids during Passover.
Knock knock. Who's there? Popcorn. Popcorn who? Popcorn and movie time.
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.
Yes, you can grow popcorn from popcorn kernels. Popcorn kernels can be planted in soil to grow into popcorn plants, which produce ears of corn with kernels that can be popped into popcorn.
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.