Riddle

What number has all letters in alphabetical order when spelled out?

Choose an answer

A.Six
B.Fifty
C.One hundred
D.Forty
Hint: It's a word with 5 letters, starting with "F".

Answer

Forty

Why this is the answer

Spelled out, 'forty' (f-o-r-t-y) has its letters in strict alphabetical order.

This riddle is filed under Riddles for Teens and rated Hard.