Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Find the 8 in the below-given Image.

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

Which country gets ill every time?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

What will you call your mother's brother's brother-in-law?

In the image given, you can find several triangles. Can you count them all?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.