Random Riddle: 13 Dollars

This is because 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 $13 dollars and another $7 dollars originally with you, which sums up to 20 dollars.