import java.util.ArrayList;
import java.util.Scanner;

public class GuessNumber
{
  public static short range;
  public static ArrayList<Integer> collection = new ArrayList<Integer>();

  public static void main(String args[])
  {
    // We need a range
    System.out.print("\nI need a range from 0 to 32,767.\n\nPlease choose a number: ");
    
    // Get and populate the range
    Scanner input = new Scanner(System.in);
    range = input.nextShort();
    range = (range == 0) ? 1 : range;
    for (int i=0; i<=range; i++) collection.add(i);

    // A few ground rules
    System.out.printf("\nNow pick a number in the range 0 to %s and remember\n", range);
    System.out.println("it. I will then try to guess the number you chose.\n");
    System.out.println("Answer \"yes\" or \"no\" to the questions.\n\n---");

    // Keep asking as long as found is false
    boolean found = false;
    while ( ! found)
    {
      // Get the size of the collection
      int size = collection.size();

      // As long as there are two or more numbers left
      if (size > 2)
      {
        // The centre index
        int centre = size / 2;
        int theNumber = collection.get(centre);

        // Default question
        System.out.printf("\nIs your number less than %s? ", theNumber);

        // Evaluate input
        String answer = input.next();
        if (answer.equals("yes") || answer.equals("1")) delete(theNumber, true);
        else if (answer.equals("no") || answer.equals("0")) delete(theNumber, false);
        else { error(answer); found = true; }
        
        // If only one number is left then we are done.
        if (collection.size() == 1) {
          int num = collection.get(0);
          answer(num);
          found = true;
        }
      }
      // Otherwise there are now 2 values in the array.
      else {
        // Get the two values
        int num1 = collection.get(0);
        int num2 = collection.get(1);

        // Ask question and get answer
        System.out.print("\nIs your number greater than " + num1 + "? ");
        String answer = input.next().trim().toLowerCase();

        // Resolve answer
        if (answer.equals("yes") || answer.equals("1")) {
          answer(num2);
          found = true;
        } else if (answer.equals("no") || answer.equals("0")) {
          answer(num1);
          found = true;
        } else {
          error(answer);
          found = true;
        }
      }
    }
  }

  // Deletes numbers less or greater than n
  public static void delete(int n, boolean lt)
  {
    // Create a temporary collection
    ArrayList<Integer> newCollection = new ArrayList<Integer>();

    // Add numbers lesser than n
    if (lt)	{ for (int i:collection) if(i<n) newCollection.add(i); }
    // Add numbers greater than n
    else { n=n-1; for (int i:collection) if(i>n) newCollection.add(i); }
    // Replace the collection with the new one
    collection = newCollection;
  }

  // The answer
  public static void answer(int num)
  {
    System.out.println("\n---\n\nThen your number is: " + num);
    System.out.println("\nThank you for playing! To play again press the Up arrow");
    System.out.println("on your keyboard and then Enter.\n\nHave a nice day :)");
  }

  // An error
  public static void error(String answer)
  {
    System.out.printf("\nI am a machine. I do not understand \"%s\"...\n", answer);
    System.out.println("\nTo play again press the Up arrow on your keyboard and then Enter.");
  }
}

import java.util.ArrayList;
import java.util.Scanner;

public class GuessNumber
{
	public static short range;
	public static ArrayList<Integer> collection = new ArrayList<Integer>();

	public static void main(String args[])
	{
		// We need a range
		System.out.print("\nI need a range from 0 to 32,767.\n\nPlease choose a number: ");
		
		// Get and populate the range
		Scanner input = new Scanner(System.in);
		range = input.nextShort();
		range = (range == 0) ? 1 : range;
		for (int i=0; i<=range; i++) collection.add(i);

		// A few ground rules
		System.out.printf("\nNow pick a number in the range 0 to %s and remember\n", range);
		System.out.println("it. I will then try to guess the number you chose.\n");
		System.out.println("Answer \"yes\" or \"no\" to the questions.\n\n---");

		// Keep asking as long as found is false
		boolean found = false;
		while ( ! found)
		{
			// Get the size of the collection
			int size = collection.size();

			// As long as there are two or more numbers left
			if (size > 2)
			{
				// The centre index
				int centre = size / 2;
				int theNumber = collection.get(centre);

				// Default question
				System.out.printf("\nIs your number less than %s? ", theNumber);

				// Evaluate input
				String answer = input.next();
				if (answer.equals("yes") || answer.equals("1")) delete(theNumber, true);
				else if (answer.equals("no") || answer.equals("0")) delete(theNumber, false);
				else { error(answer); found = true; }
				
				// If only one number is left then we are done.
				if (collection.size() == 1) {
					int num = collection.get(0);
					answer(num);
					found = true;
				}
			}
			// Otherwise there are now 2 values in the array.
			else {
				// Get the two values
				int num1 = collection.get(0);
				int num2 = collection.get(1);

				// Ask question and get answer
				System.out.print("\nIs your number greater than " + num1 + "? ");
				String answer = input.next().trim().toLowerCase();

				// Resolve answer
				if (answer.equals("yes") || answer.equals("1")) {
					answer(num2);
					found = true;
				} else if (answer.equals("no") || answer.equals("0")) {
					answer(num1);
					found = true;
				} else {
					error(answer);
					found = true;
				}
			}
		}
	}

	// Deletes numbers less or greater than n
	public static void delete(int n, boolean lt)
	{
		// Create a temporary collection
		ArrayList<Integer> newCollection = new ArrayList<Integer>();

		// Add numbers lesser than n
		if (lt)	{ for (int i:collection) if(i<n) newCollection.add(i); }
		// Add numbers greater than n
		else { n=n-1; for (int i:collection) if(i>n) newCollection.add(i); }
		// Replace the collection with the new one
		collection = newCollection;
	}

	// The answer
	public static void answer(int num)
	{
		System.out.println("\n---\n\nThen your number is: " + num);
		System.out.println("\nThank you for playing! To play again press the Up arrow");
		System.out.println("on your keyboard and then Enter.\n\nHave a nice day :)");
	}

	// An error
	public static void error(String answer)
	{
		System.out.printf("\nI am a machine. I do not understand \"%s\"...\n", answer);
		System.out.println("\nTo play again press the Up arrow on your keyboard and then Enter.");
	}
}

The player selects a range from 0 to n, remembers a number in this range and then the script asks the player a question trying to guess the number. The PC will always guess the correct number.\r\n\r\nI could have added more varied questions, but the task did not state it had to be interesting, and being a lazy creature I took the path of least résistance.

PC Guesses Remembered Number

number

Java