The person who makes it has no need for it. The person who purchases it does not use it. The person who does use it does not know he or she is. What is it?

What is the longest word without any repeated letters?

Can you find two whole numbers, such that the difference of their squares is a cube and the difference of their cubes is a square? What is the answer in the smallest possible numbers?

Which letter of the alphabet is the only one that does not appear in any of the names of the 50 United States?

As Santa was going to St. Ives,
Santa met a man with seven wives.
Each wife had seven sacks,
Each sack had seven cats,
Each cat had seven kits.
Kits, cats, sacks and wives,
How many were going to St. Ives?

What word looks the same backwards and upside down?