Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

what one word does the below rebus identifies?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

It belongs to you, but other people use it more than you do. What is it?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

What Adam and Eve do not have but the rest of the people have?

Which is Odd One Out and why?

4377

3954

9862

8454

9831