What has a ring but no finger?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?

What does Alexander the Great and Winnie the Pooh have in common?

How can a man go eight days without sleep?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

What Does this text mean:

important=important

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

Who can jump higher than a Mountain?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?