Can you solve the $20 riddle? ft SMBC Comics' Zach Weinersmith

6:30 instead of the thousand, you could give him $10 of any denomination to make his statement true, so long as you dont give him either of the two 10s he gave you. The rules as stated say that specifically giving one of the 2 10s he just gave you back means the statement is false, but it doesn't say anything about giving another, unrelated $10.  Also, the statement " you will either give me $1000, or $10" doesn't specify a specific 10, so an unrelated ten can still fulfill the statement without triggering the paradox. $10 profit.

He could fix this either by making the initial rules apply to any ten, or changing his statement to be "you will either give me $1000, or one of the 10s i just gave you."