What is the answer to the riddle: why does the us mint need a new building?

To provide better quarters.

What are the math problems?

Please help! I need this for extra credit!

A symbol used to represent a number

Because the old one doesn't make cents anymore!

The answer to the riddle "Why does the US Mint need a new building?" is that "they need more space to make cents." The play on words here is between the word "cents" (referring to coins) and "sense" (referring to logical reasoning).

To arrive at this answer, one would have to understand the double meaning of the words involved in the riddle. Specifically, the phrase "to make cents" is a pun, as it sounds similar to "to make sense." In this context, "to make cents" refers to the US Mint's need for additional physical space to manufacture and store the currency, specifically the coins (or cents).

Understanding puns and wordplay often requires a familiarity with the language and the ability to recognize alternative meanings or homophones. Recognizing these linguistic nuances can make solving riddles like this one more enjoyable.

You'll find out after you solve your math problems.