Enigmas impossible to answer

I have 2 feet, 6 legs, 8 arms, 2 heads and an eye, who am I?

I never breathe but I have a lot of breath.

Who am I ?

What lengthens and shrinks at the same time?

I speak all languages ​​and my head is always upside down. Who am I ?

I'm black, I turn red, and I end up white who am I

I follow a man, I follow a woman, I am not a man neither a woman who am I

I'm white when you use me and I disappear when you forget me.

The more guardians I have the less guarded I am.

The fewer guards I have, the more I am guarded.

Who am I ?

I can turn without moving. Who am I ?

I have a throat but I cannot speak, I run but do not drown, I have a bed but I never sleep. Who am I ?