Answer:
1) A string is "non-numeric data". In other words, it is text.
2) False, a runtime error means that there is a problem, but it will be with the software, not the hardware.
3) An impossible task such as dividing five by zero is a logical error. Not using quotes on a string would be a syntax error, printing an inaccurate statement is not an error at all (as far as the program is concerned anyway), and using camelcase on a variable with multiple words is a common convention.
4) variableName = "value"
5) The code provided here is illegible, so I can't give a straight answer. It seems to be missing operators.