Need help with a Psychology Diagnosis Question

Need help with a Psychology Diagnosis Question

A woman comes to you for an initial interview. There is no history of drug or alcohol issues. There are no indications of hallucinations or delusions which would indicate a psychosis. She seems confused and gives wrong answers to simple obvious questions such as, “How many legs does a dog have?” Her answer was 5. What is your diagnosis and why? Is there any further information you may need to make your diagnosis?