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

100 prisoners are stuck in the prison in solitary cells. The warden of the prison got bored one day and offered them a challenge. He will put one prisoner per day, selected at random (a prisoner can be selected more than once), into a special room with a light bulb and a switch which controls the bulb. No other prisoners can see or control the light bulb. The prisoner in the special room can either turn on the bulb, turn off the bulb or do nothing. On any day, the prisoners can stop this process and say "Every prisoner has been in the special room at least once". If that happens to be true, all the prisoners will be set free. If it is false, then all the prisoners will be executed. The prisoners are given some time to discuss and figure out a solution. How do they ensure they all go free?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

Solve this riddle by finding the odd one out from the rest.

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What can you catch but never throw?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Can you fill the blank with the correct number?

6 30 870 756030 _____

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?