"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 Essigny-le-Petit is 358.
Petit Le Mans was created in 1998.
Le petit Gonzales was created in 1962.
Le Petit Trianon was created in 1892.
The population of Vert-le-Petit is 2,554.
Vavray-le-Petit's population is 58.