Answer 1

it would be:
cout << i << endl;
and it's probably 'beep' not 'beeb'
cout << "beep" << endl;
pay attention to the direction of the 'less than' signs

Answer 2

Yup, it doesn't work because you output "beeb". Output "beep" or whatever it says. Read carefully

Answer 3

Error on the semantic, the correct is ' cout << i << endl; '