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

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

Solve the rebus riddle in the picture below.

Why Aeroplane windows are round?

Which wheel of car does not rotate when you turn your car right?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

How many triangles can you count in the figure given?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

There are two arch enemies Messi and Ronaldo who hate each other to an extreme. One day both were going together and a Jeanie appeared in front of them. Jeanie grants 3 wishes to Ronaldo and one to Messi.

Messi replied smartly 'Give me twice whatever Ronaldo demands'.

Ronaldo asked his 1st wish 'Give me 10000 billion dollars. Soon Messi gets 2000 billion dollars.
Ronaldo asked for his 2nd wish 'Give me one mansion in every country in the world. Soon Messi gets two mansions in every country of the world?

What should be Ronaldo's third wish?