Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

What work can one never finish?

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

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?

Where do you go to learn how to make ice cream?

An ape is trying to climb on a pole that is 60 feet high. Due to the slippery surface, the ape climbs 3 feet in a minute only to slip back 2 feet.

How much time do you think the monkey will take to reach the top of the pole?

John was drowned by he was not wet. How?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

What shoe company does this rebus represent?