Is there an easy way to shuffle an NSDictionary?

I am creating a quiz app and I have an NSDictionary with the keys as questions and values as true or false (the answers). I want to randomly select 5 values from this NSDictionary. How can I shuffle the NSDictionary to select values at random?

Here's the NSDictionary

let questions: NSDictionary = [
    "A habit is a behavior that has been repeated enough times to become automatic.": true,
    "Spending a conversation talking mostly about yourself is a good way to influence people.": false,
    "In the 7 Habits of Highly Effective People, the Circle of Influence is all of the things inside an individual's control.": true,
    "In The Outliers by Malcolm Gladwell, the author states that the number of hours you practice is more important than your natural talent": true,
    "Think and Grow Rich by Napoleon Hill is based on the idea that anyone can achieve success if they have the right mindset.": true
];

Using a Swift Dictionary instead of NSDictionary this code does what you have asked - randomly chooses 5 questions (your example only has 5 questions so they are all chosen):

let questions: Dictionary = [
    "A habit is a behavior that has been repeated enough times to become automatic.": true,
    "Spending a conversation talking mostly about yourself is a good way to influence people.": false,
    "In the 7 Habits of Highly Effective People, the Circle of Influence is all of the things inside an individual's control.": true,
    "In The Outliers by Malcolm Gladwell, the author states that the number of hours you practice is more important than your natural talent": true,
    "Think and Grow Rich by Napoleon Hill is based on the idea that anyone can achieve success if they have the right mindset.": true
]

let randomQuestions = questions.keys.shuffled().prefix(5)

for question in randomQuestions {
    // It is safe to force unwrap the answer because we know that `question` exists in the keys
    let answer = questions[question]
    print("Q: \(question), A: \(answer)")
}

As other people have commented, a dictionary is possibly not the best data structure to use for this problem. I think a better solution would be to use an array of Questions for proper type safety and more readable code:

struct Question {
    let title: String
    let answer: Bool
}

let questions = [
    Question(title: "A habit is a behavior that has been repeated enough times to become automatic.", answer: true),
    Question(title: "Spending a conversation talking mostly about yourself is a good way to influence people.", answer: false),
    Question(title: "In the 7 Habits of Highly Effective People, the Circle of Influence is all of the things inside an individual's control.", answer: true),
    Question(title: "In The Outliers by Malcolm Gladwell, the author states that the number of hours you practice is more important than your natural talent", answer: true),
    Question(title: "Think and Grow Rich by Napoleon Hill is based on the idea that anyone can achieve success if they have the right mindset.", answer: true)
]

let randomQuestions = questions.shuffled().prefix(5)

for question in randomQuestions {
    print("Q: \(question.title), A: \(question.answer)")
}