Your status will tell you. Your status is in the right hand corner of the screen. Click on it and it will tell you how far you are from getting your next belt.
10-15 times i think
There isn't a brown belt. Or at least that's what I heard from my little brother who is a red belt and gets on club penguin often. He might be wrong though, but he said the brown belt would have been before the red belt.
it depends on how many times you win ( you could be a black belt in 1-3 hours )
6
for the white belt u need 5
depends on how many you win
50 Penguins......
30
5or6
to get a belt in club penguin you have to have 13 battles.it doesnt matter if you win or lose as long as you just play 13 times.(the black belt may vary)
now on the new version of it, they have percentage ratings, pass 100% on a belt, and you will get a new belt
YOU HAVE TO DO IT 88 times trust me i am a ninja