Check the following code ( In the description ) and find the Error

Question

#include <iostream>
//using namespace std;
//Compiler version g++ 4.9

int main()
{
std::cout << "Hello" << std::endl << std::cout << "World";

return 0;

}

Answer 1

You passed a std::cout to another.
std::cout<<"Hello"<<std::endl<<"World"; works.

Answer 2

that's right

Answer 3

You have not included "using namespace std" which also might be the cause for the error.