Can you name some countries which do not have the alphabet 'A' in them?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

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

What is 3/7 chicken, 2/3 cat and 2/4 goat?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

You can see it everyday, But cannot touch it at will. What is it?

How many letters are in the alphabet?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?