Hidden Countries

    The names of which two countries are hidden in the sentence
    "Extra tuition will help an amateur to improve his painting."?

    The names of which three countries are hidden in the sentence
    "Hidden marks in diamonds anger many people"

    The names of which five countries are hidden in the sentence
    "I want you to go to a familiar gent in a green landrover, and ask if he's called Ben, Innis or Jordan."