"Do you want to play games in my phone/PC?" OR "Do you want to play games on my phon

[twilit1988]

My dear and respected teachers,

1: "What's the English for...?" OR "What's the English of...?"
2: "I always use Yahoo! in my phone." OR "I always use Yahoo! on my phone." Which one is correct?
3: "Do you want to play games in my phone/PC?" OR "Do you want to play games on my phone/PC?"
4: "Today he went to get my child admission to school." correct?

[Soup]

Hi twilit1988

• What's English for ... ?
• I always use Yahoo! on my phone.
• Do you want to play games on my phone/PC?
• He took my child to school, today, to register.