Riddle of the Day

[Gizmokid2005]

We are very little creatures; all of us have different features. One of us in glass is set; one of us you'll find in a jet. Another you may see in tin, and a fourth boxed within. If the fifth you should persue, it can never fly from you. What are we?

ANSWER (Congrats Acoustikarl): The vowels; A, E, I, O, and, U.

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NEXT RIDDLE:

If a hen and a half
lay an egg and a half
in a day and a half -
how many eggs can a hen lay in three days?