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

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Our product and our sum always give the same answer. Who are we?

Find the next number in the series.
1 10 24 43 67 ?

People make me, save me, change me, raise me. What am I?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

What is the below Rebus indicate?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?