What does the below image rebus riddle means ?

Why Aeroplane windows are round?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What has no start, end, or centre?

I look at you, you look at me I raise my right, you raise your left. What am I?

Find the next number in the sequence

5 12 24 36 ?

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?

What has a bottom at the top?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?