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

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

Which famous Hollywood movie name is hidden in the below rebus?

Which word does the below Plexor means ?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?