Spot what is wrong here in below Picture?

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

I have eight fingers and two thumbs but I do not live. What Am I?

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

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

Can you spot the man between the coffee bean in the picture below ?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

What has many keys but can’t open a single lock?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

I am quite hot but become too cold if you remove the first two letters. What am I?