There was an aeroplane crash, every single person died, but two people survived. How is this possible?

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 ?

Can you fill the blank with the correct number?

6 30 870 756030 _____

The below is a number puzzle. It should be read left to right, top to bottom.
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
? ? ? ? ? ?
? ? ? ? ? ? ? ?
Question 1: What are the next two rows of numbers?
Question 2: How was this reached?

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.

But do you know how many of these numbers are prime?

John was piloting a plane behind a car but was never able to overtake it. Why?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?