Hair and Nails

Q: 

1. I am going to marry a girl who is 7 years younger than me. 10% of my hair is white and I want to dye it black to look younger for her. Is it permissible? 

2. Is hair transplant permissible?

Q: If someone’s moustache is that much big that it covers his upper lip, is it makrooh e tanzeehi or makrooh e tahreemi?

Q: Is trimming the beard to a goatee haraam? I am 17 years old and I don’t have a full beard yet, there are just some little peach fuzz hairs coming from my sides. Is it ok if I shave it to a goatee?

Q: Is it permissible for men with a beard and long hair to tie a pony tail for keeping their hair neat? Or will this be considered tashabbuh with women?

Q: Can a male remove his unibro?

Q: 

1. Is it sinful to touch the beard with filthy hands, like touching the beard with hands that have something dirty in them but not najis? 

2. Is it sinful to throw the beard that fell from the skin into the dustbin or step on them?

Q: Is cutting a fringe in the front of the head haraam for boys?

Q: What is the ruling for Muslim women keeping long nails in Islam? Some women saying they can go for 40 days without clipping their nails...

Q: Is it permissible to shave a toddlers hair (e.g. 1 year old) as some say the hair will grow thicker thereafter?

Q: I would like to know about shaving of the moustache with a razor blade. Is it permitted to use a razor blade or can we only use a scissor or trimmer?