Which alphabet letter is a question?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

John, a 5-year-old boy, was really fond of the chocolates. He asked his Mother to give him some money to buy his favourite chocolates. His Mother gave him $45. He went to the shopkeeper and asked, "How much is one chocolate for?". The shopkeeper said $3 for one chocolate. Also, if you give me the wrappers of three chocolates, I will give you one for the exchange.
In total, how much chocolate could John eat?

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?

What number when divided in half becomes zero?

Can you identify if it's a murder or a suicide ?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

If 1+9+8=1, what is 2+8+9?