Dollars In A Jar

Riddle: Every day, an old woman takes a dollar and puts it in a jar. When it has been a year she looks in the jar and instead of hundreds of dollars, she has NO dollars in the jar..... but she is very happy. The question is why?

Answer: The old woman keeps ants in the jar and every day she feeds them a dollar to make into her nest. Source: https://riddles.com/index.php/8697

Every day, an old woman takes a dollar and puts it in a jar. When it has been a year she looks in the jar and instead of hundreds of dollars, she has NO dollars in the jar..... but she is very happy. The question is why? — Dollars in a jar by marikaorosz Riddle