A more thorough explanation:

Ganser's syndrome is a condition where a person gives strange and nonsensical answers to questions. This can happen when someone is under a lot of stress or has a mental illness.

For example, if someone asks a person with Ganser's syndrome what 2+2 equals, they might answer "5" or "3" instead of the correct answer of "4". This can be confusing and frustrating for the person asking the question.

Some people might pretend to have Ganser's syndrome in order to get out of trouble. For instance, a prisoner might act like they have the condition to try to get a lighter sentence. However, this is not a good idea and can lead to more problems.