Purpose of a cognitive test is not to test how smart one is, it’s designed to determine if the person has suffered brain damage from a stroke, concussion, drug use, etc.
There are no “right or wrong” answers, it’s a test to evaluate brain damage.
What is strange is the frequency of rump’s cognitive tests.
Lower rates on investment incomes? Do you know what current rates are? Do you know what deductions from the tax base are allowed?
Do you understand that money used to buy stocks has already been taxed at regular rates, BEFORE you apply capital gains taxes?