What has 13 hearts but no other organs?

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

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

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.

What is the Surname of Barbie Doll?

What do you call a fish without an eye?

By moving just one matchstick, you need to make the below statement true. Can you do it?

Be active and find the killer in the picture Riddle below.

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?