When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Which Burger Is Different in below image?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

What you cannot hold but it is yours?

What jumps when it walks and sits when it stands?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

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.

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