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

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

Find the hidden tiger in the given optical illusion ?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

Prove that twice of ten is the same as twice of eleven.

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

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