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If the riddles can be traced to a protected source, they would need to be licensed. If they are entirely your own work, or are sufficiently old enough that they are no longer protected, you can publish the compilation as your own work.
Oddly, because copyright protection is automatic, there's no codified way to publish works into the public domain. You may replace the customary copyright notice with a statement explaining your wish not to assert copyright in the work, or you may find it easier to publish under Creative Commons.
What else can I help you with?
Is think and grow rich copyright free to publish?
No; the original edition will not enter the public domain until 2032.
What are some popular websites where I can find public domain MIDI files?
Some popular websites where you can find public domain MIDI files include FreeMidi.org, PublicDomain4U.com, and Musopen.org.
Can you publish an out of copyright book?
If a book is truly out of copyright, it is in the public domain and anyone can republish it in whole or in part.
How do you publish a novel without copyrights?
In place of a copyright notice, explicitly state that you wish to donate the work to the public domain.
Who is the most popular manufacturer of the caliber 30.06 rifle?
Data not in the public domain
What are some popular public domain board games that can be enjoyed by people of all ages?
Some popular public domain board games that can be enjoyed by people of all ages include Chess, Checkers, Backgammon, and Go.
What are some examples public domain software?
The most popular example of software in the public domain is SQLite. There isn't too much software in the public domain, as most of it is licensed under a very permissive free software license, like the BSD license.
What popular comic are public domain?
A fairly comprehensive list is available at the link below.
What if your book was published and now out of print you retain the copyright to re publish it in it original form?
if you retained the copyright, yes you can republish it. or if it became public domain then it could be republished.
What is Shakespeare's most widely published work?
Very possibly Hamlet, but this is a guess. Since Shakespeare's works are public domain, anyone can publish them and there is nobody who will keep track of how many are published.
Where can one find pictures of puppies that are considered to be public domain?
One can find pictures of puppies that are considered to be in the public domain on public domain picture collection websites. These are a few of those: Wikimedia, PublicPhoto, Pixabay, PD photo, Photos Public Domain, Picdrome, Alegri Photos, Free Photo Gallery, Public-Domain-Photos, 4Free Photos, Free Stock Image Site, Public Domain Files,Public Domain Depot, Open Galleries, Free Images Collection, Free Digital Photos, Public Domain Photo, Project Public Domain Pictures.
Is the popular piano duet Heart and Soul public domain?
"Heart and Soul" was composed by Hoagy Carmichael and is still under copyright protection. The song was published in 1938, so it will enter the public domain in the United States in 2034.
