Since you are talking about people who have not revealed their sexual orientation, it's impossible to count them.
Yes. Anyone can be closeted.
Closeted gay, yes !
The country with the largest number of gay people is China. However, the majority of gay citizens of China are closeted.
He is a well known closeted gay
Yes. He's closeted.
Since the gay person in this type of marriage is almost always closeted, there is no way to know the answer.
Yes, but in Amish communities, gay men are closeted by necessity.
In general they're not. However, some closeted gay people will attack the gay community for various reasons. Quite often, it's to prove they're not gay. It may also be jealousy.
A gay person who hasn't come out yet. Someone who keeps their sexuality to themselves.
Bangladesh is an anti-gay country, where if caught, gay people face life in prison. Therefore, virtually all gay people in Bangladesh are closeted, making it impossible to count them.
Gay people in Pakistan are closeted. There aren't any famous, openly gay people in Pakistan.
"Closeted" means the person is in denial about a particular aspect of him/herself, or chooses to not share that aspect with the general public. The difference between a closeted racist and a closeted gay person can be simplified as the difference between a racist and a gay person. There are actually many differences between the two. A racist is a person who believes that the color of a person's skin can determine the intelligence, integrity or other personal characteristics of an individual; usually a racist believes that his/her own skin tone is superior to that of all other races. A gay person is sexually attracted to people of the same gender as him/herself. Note - many evangelical or conservative Christians define a gay person as someone who has sex with another person of the same gender; this definition appears to be unique to the conservative wings of most major religions.