What has one letter and starts with an E?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

What have one eye but still cannot see?

What demands an answer, but asks no questions

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 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.

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

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?