What is at the end of a rainbow?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

Which city is three-fifths chick two third cat and 50% goat?

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

What does below chemistry rebus means?

At Delhi Cricket Clubhouse, there were four kids(Kohli, Yuvraj, Pant, and Dhoni) ages 1,2,3 and 4 and have 1,2,3 and 4 cricket balls in different orders.

We know the following facts:

Kohli has more cricket balls than his age.
Dhoni is older than Yuvraj.
One child has the same number of cricket balls as his age.
Pant has fewer cricket balls than Dhoni.
A child aged 3 has two cricket-balls.

Pant is the youngest.

Can you determine the age of the children and the number of cricket balls they have?