Can you find a number that lies one third of the distance between 1/3 and 2/3?

Replace the question mark with the correct number below.

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

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?

What is the below Rebus indicate?

I have Rs.50 and I spend it in the way as below.

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

There was a blind beggar living on the footpath of a street. Suddenly one day, the beggar's brother died. What was the relation of the blind beggar with the person who died?

PS: Brother is not the answer.

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?