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?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

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.

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

What word begins and ends with an E, but has only one letter?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

O_er_t_o_

Complete the missing letters of the given word.