Can anyone tell me whats wrong with my code?

I'm new to programming and to c++. If this sounds stupid then you know why. I'm having problems with my code. For some reason, not all strings with 4 letters don't go to my array when I made a function to make that happen. Plus, strings with 6 letters also go to my array that are only supposed to store in 4 or anything that the user wants to put.

I've tried a lot that I can't even list them down.

#include <iostream>
#include <string>
#include <windows.h>

using namespace std;

int main()
{
    string LetterInput, LetterLoad, input;
    string Words[] = {"camera","lotion","fire","eggs","roll"};
    string PossibleAnswers[] = {};
    int Number;
    int Size;
    bool YesorNo = false;

cout << "Lets play HANGMAN! " << endl;
Sleep(500);

cout << "Think of a word and type in the number" << endl;
cout << "of letters there are" << endl;
cin >> Size;

for (int i = 1; i <= Size; i++){
    LetterLoad += "_";
}

for (int i = 0; i <= sizeof(Words)/sizeof(string); i++){
    if (Size == Words[i].size()){
        PossibleAnswers[i] = Words[i];
    }
}

cout << PossibleAnswers[0] << endl;
cout << PossibleAnswers[1] << endl;

My expected results are for the array to only show "fire","eggs","rolls" in that order. But the actual results are, "camera","lotion","fire","eggs". Lol what is the problem.