How many sides does a circle have?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

I have no life, but I can die. What am I?

Can you write down eight eights so that they add up to one thousand?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?