Different types of soccer

How many player are required for beach soccer?
1. 4
2. 5
3. 6
4. 7
What is the game periods for indoor soccer?
1. 4 x 20 min period
2. 4 x 25min period
3. 4 x 15 min period
4. 4 x 10 min period
For beach and indoor soccer, is there any offside?
1. No, there isn't.
2. Maybe... I Guess
3. Yes...confirm have..
4. I need to ask for help....pls....