Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

There is something which you can be arrested for attempting but not for successfully completing.

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

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?

What is the last thing you take off before bed?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

What number when divided in half becomes zero?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?