What you cannot hold but it is yours?

What Does this text mean:

important=important

A boy was driving a car, a girl took a lift from her. She asked his name. The boy said - my name is hidden in my car’s number, find it if you can. After this, she got down Car number was [ WV733N ] Can you guess the name now?

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.

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

There is something which you can be arrested for attempting but not for successfully completing.

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

When it is alive we sing, when it is dead we clap our hands. What is it?

Can you count the number of triangles in the given figure?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?