Can you make a fire with just a single stick?

What has one letter and starts with an E?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word 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?

What you cannot hold but it is yours?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

If eleven plus two equals one, what does nine plus five equal?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.