I have branches, but no fruit, trunk or leaves. What am I?

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

Can you find the thief by just looking at the picture below?

What is always in front of you but can’t be seen?

Do you know who was buried in John's tomb?

I always drive my customer away.

Who am I?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.