If a wheel has 54 spokes, how many spaces are there between the spokes?

I know a nine-letter word having only one vowel.
Do you ?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

Which is the correct shadow of the bird?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

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.

I make two people out of one. What am I?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

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?