A/N and Riddle 1

A book about riddles. DO NOT SEARCH THE INTERNET FOR ANSWERS. PLEASE, JUST DON'T.
I also don't own most of the riddles.
Credit: Internet and the only websites I remember: www.doriddles.com, https://brightside.me/wonder-curiosities/4-riddles-with-hidden-messages-that-will-test-your-intelligence-273760/