Whats a good diet I can do without buying anything?

[Hollyy]

WELL!
my friend is having a pool party in EXACTLY a month.
and my stomach is like flabby and ew.
i am 13 and i weigh 125 lbs and I really want to lose like 20
pounds? is that possible in a month?

i hope so. anyway.
I want something easy that i wont have to buy anything with and I do like 20 mins of exersising each day, btw.
help?
oh yeah and what are some good work outs?

[Candy]

ur not gonna lose 20 pounds in a month

[RAGMAN]

Try eating 5 small meal a day and ride your bike and walk.