15. Which is the lowest numbered statement which is true?
Statement 201: "Statement 203 is true".
Statement 202: "Statement 201 is true".
Statement 203: "Statement 206 is false".
Statement 204: "Statement 202 is false".
Statement 205: "None of the statements 201, 202, 203 or 204 are true".
Statement 206: "1+1=2".
SolUTION
204

Statement 206 is clearly true, so Statement 203 must be false. In turn Statement 201 must be false and therefore Statement 202 must also be false.
Statement 204 is therefore true. Therefore, Statement 204 is the lowest numbered true statement.