moose
Facial hair has no smell and it is the same colour as the hair on your head.
No it doesn't. The dye only affects the hair and because you have no hair on your head it will not change colour.
Smash a tomato with your head and your hair will be naturally ginger.
Red head
Dye a strip of the hair colour in to your hair, then if you like it go with the full head :)
No. The amount of hair on your head will not affect cognitive function.
Yes - colour of hair is not relevant to head lice.
Head lice are white. But the nits (or eggs) are like brown dots.
No it affect the parts of your head!
Yes, Head & Shoulders shampoo can strip hair color, particularly if the color is semi-permanent or if the hair is porous. The shampoo's active ingredients, including zinc pyrithione, are designed to remove buildup and can affect hair dye. Frequent use may lead to fading of color-treated hair. For color preservation, it's advisable to use sulfate-free shampoos specifically designed for colored hair.
Take a small section of hair from the back of the head, tie it together, mix up the colour you desire and put it in foil with your hair section. Check the colour in maybe 20 minutes.
You could easily ask your hair stylist, or buy a hair dying kit that fits the colour of your hair, or the colour you want. Use a tiny bit, but follow the same steps as if you were dying your the hair on your head.