Some do. But that is caused by immaturity or herniation. But it isn't the nipples that are cone-shaped, but everything, areolae too.
Women use their nipples to breast feed their babies.
No, nipples do not change color in water. The color of nipples is determined by the amount of pigment present in the skin and is not affected by being in contact with water.
dark nipples" and a "dark line" occurs during preganancy
The nipples are located anteriorly (toward the front) compared to the shoulder blades, which are located posteriorly (toward the back).
rub vinegar on them
To cure puffy eyes, you will have to see an eye specialist who will recommend to you the proper medication.
Girls have nipples from the time they are born, perods have nothing to do with them.
Emo girls have puffy hair because they tease their hair to make it puffy since that's how emos hair should be and it's the emo hairstyle.
That just means that your body is slower to mature. They will always remain puffy, learn to appreciate your body. You are unique and being unique is better than being normal or "default".
sometimes puffy(s) are a young girls breast when they first start to develop
harry nipples
Yes you can some girls like there nipples sucked on some don't you can
20mg-40mg per day for 1-3 months
It's called gynecomastia. It's normal to have those during puberty.
There is sadly no easy cure for puffy eyes as of now, but a couple of good home remedies do include rinsing your eyes in cold water and drying them off, and getting enough sleep.
No, this is fairly normal for boys in puberty.