* Vowel: A, E, I, O, U (and sometimes Y)
* Long: A vowel that says its name (like "a" in "bake")
* Short: A vowel that doesn't say its name (like "a" in "cat")
* Oddball: Something that doesn't fit the pattern.
The Answer:
The oddball is likely the letter Y. While it can sometimes act as a vowel, it often acts like a consonant, especially at the beginning of a word (like "yes").
Let me know if you'd like to try another riddle!