21) What type of account is needed to play Pokemon Go?
22) How many pokeballs can be stored at once?
23) What currency is used to buy in-game items?
24) What type of creatures are caught in the game?
25) How do players earn rewards in the game?
26) What does the "PokeStop" feature allow players to do?
27) Who developed the game?
28) What type of activities are available in the game?