Ramadhaan & Fasting

Water entering the ears and using deodorant while fasting

Q:

1. While fasting, if a person takes a bath then, will the water entering the ears break the fast?

2. During wudhu, while doing the masah of ears, when we put our finger in the ear, will the water entering our ear break the fast?

3. After bathing will the use of deodarant (both spray and roll on) break the fast? Because it is said that the pores of the skin are open after bathing and the deodrant enters the pores thats how the smell comes when we sweat. 

Following the moon sighting of one's area

Q: Every year there come witnesses from people that they have seen the moon but the hilal committee dont take witnesses and says we can fast only if they will see moon. So as the system of moon sighting is not correct and also some people in society fast with nearby country. I live in Pakistan and people fast with Saudi Arabia. So can I fast with nearby country that is Saudi or any other country?

Masturbating while fasting

Q: I am a Muslim boy of 15 years old. Last year in Ramadan while fasting I masturbated but stopped the ejaculation but it leaked. Secondly same Ramadan I did the same except semen did not come out. Please help me and tell me what is the ruling on both of these cases. Please note that I am 15 and do not have that much liability.