Legend of Kremlin is a kosher vodka. Check out the official website www.legend-of-kremlin.com then go to list of products and Legend of Kremlin. There you will find a certificare of the Chief Rabbinate of Russia, confirming that Legend of Kremlin is kosher.
Most Vodka is made from wheat or rye, and therefore is not kosher for Passover. There are 3 or 4 still made from only potatoes, but you must check labels.If you want some potato Vodka for the next high Holy days, you can make some at home. We call it Polish White Lightening, but you can name yours whatever you like.
It would have to be certified kosher for Passover.
The label has to say "Kosher for Passover"
Yes, only if they are specifically certified kosher for passover. You can find kosher for Passover olives at any Jewish supermarket
It can be, it would require a valid Passover hechsher.
Yes, it can be since it is made from wine, which can be Kosher for passover if created under appropriate supervision. The bottle would require a kosher for Passover hechsher.
If you were able to find corn vinegar that is certified kosher for Passover, it would be kitniyot which means that the majority of Ashkenazi Jews would not use it.
There are kosher food companies that are now making gluten-free products Kosher for Passover and all-year-round. However, something being gluten-free has no bearing on whether or not it is Kosher or Kosher for Passover.
Arugula is an edible leaf and is kosher year round including Passover.
Yes, they must be certified kosher for Passover though.
Yes, there are no restrictions on fruit for Passover.