What's black and white and red all over?

If you're really good with numbers, Then the answer should be clear. Can you tell me how many seconds There are in a year?

Though I don't have such form, I do exist. In no form, I look like you. You shall not find me rather distinguishable by looks, but I can become distinguishable.

Born of brine yet dried to dust, a pinch of me is often enough. I help to bring out every taste, with pepper close, i’m often placed.

I'm a portal, small and deep, A guarded secret I keep. Though round or square, my form may be, What must be found, to look through me?