What do you answer even though it never asks you questions?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

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?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

A person is found murdered in his Chamber. When the crime scene is investigated, the Investigator find out that there is a calendar on which the victim has written a few numbers with his blood. The numbers are 4, 11, 11 and 4.

There are four suspects in the murder, John, Jacob, Anna and Lee. Can you find out who is the murderer?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Can you solve below mathematical equation?

2^1234 - 2^1233

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

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?