"Le petit déjeuner" means the breakfast.
Le petit marché means 'the small market' in French.
"for the kid"
j'aime ... pour le petit déjeuner means "I like ... for breakfast"
The little newspaper
It translates into English as "I'll take no breakfast at 7 o'clock.".Unless you meant to write 'mon' instead of 'non', then the sentence translates to "I'll take my breakfast at 7 o'clock."
"the smallest country"
The population of Sacy-le-Petit is 562.
Doulevant-le-Petit's population is 42.
The population of Mourmelon-le-Petit is 785.
The population of Virieu-le-Petit is 313.
Liffol-le-Petit's population is 355.
Abergement-le-Petit's population is 41.