Riddle: I had 5 dollars. My mom gives me 10 dollars, while my dad gave me 30 dollars. My aunt and uncle give 100 dollars. I had another 5 dollars. How much money did I really have?
Answer: The correct answer is 10 dollars. If you read the question carefully, the question asked about your first money with “how much money DID I really have?”. The money you had is 10 dollars. That is before your parents and relatives gave you additional money.
However, given that the logic and time of the tense is in the past, it is safe to assume that the question pertains to the money you had originally before you received external money from someone else.
Therefore, you had 5 dollars and another 5 dollars originally with you, which sums up to 10 dollars.